Some Fans of 'Titanic' Think Jack Dawson Was Actually From the Future

Everyone loves a good plot twist — which is why the Internet has come up with so many elaborate fan theories about everything. Dedicated fans will waste no time analyzing every little detail in a work of art, and movies, of course, are no exception; after all, there could be all kinds of hidden meanings and Easter eggs you miss while watching a good flick! Luckily, we've scoured the deepest parts of the Internet to find the most fascinating and mind-blowing fan theories about your favorite classic films and childhood movies.

While some of these fan theories simply speculate about a character or a specific scene in a film, others completely change the way we look at the entire plot of the movie and even the expanded franchise. No matter how far-fetched and outrageous they seem, they always have some bit of evidence that prove the theory might just be possible. Who would've thought that a super-dark theory about Grease could actually make sense, or that one fan theory about Inception can make its plot even more complicated and mind-bending? No matter what kind of movie is your jam, here are 20 insane fan theories about famous movies that will definitely blow your mind.

Everyone knows this iconic James Cameron movie inspired by the ill-fated voyage of the Titanic in the early 20th century — the romantic story of Rose and Jack did earn the movie 11 Academy Award wins, after all — but did you also know there's a particularly wild theory about none other than the film's swoon-worthy protagonist, Jack Dawson?

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According to a popular fan theory, Jack is actually from the future and only boards the Titanic to save Rose's life — and there's plenty of evidence to prove it. The most obvious clue is that Jack mentions Lake Wissota as a lake he once fished in as well as a rollercoaster at Santa Monica Pier — except that both of these sites didn't exist until years later, after the Titanic sank in 1912!

Need more evidence? Just take a look at Jack's out-of-place hairstyle and fashion for the time period, including a rucksack he's seen carrying that actually wasn't popular until the 1930s.

The plot of this fan-favorite children's movie seems innocent enough: A clownfish father, Marlin, sets on a journey across the sea to find his only son after he gets lost. But a deeper reading of this animated film suggests that there's a lot more to the story than we thought ...

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If you remember the film's opening scene, Marlin wakes up from a barracuda attack on his family to find that only one of his eggs — Nemo — survived. But one theory suggests that the grieving father only imagined that one son survived — which means that Nemo actually isn't real, but is only a figment of Marlin's imagination conjured up to cope with the loss of his family.

Following this theory, the entire movie is an allegory of a father's journey through the five stages of grief, as many fans suggest. And the kicker? "Nemo" actually means "nobody" in Latin.

Grease is everyone's favorite musical film: It has everything from great costumes to lovable characters, plus a ton of really fun musical numbers ("Summer Nights," anyone?). But there's one particular theory that definitely puts a darker tone to this charming movie about a high school romance — can you guess what it is?

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The key to this theory is both at the beginning and end of the film: Grease opens with Sandy and Danny meeting at the beach, and ends with a final shot of the couple driving up towards the skies in a flying car.

Well, one dark fan theory posits that Sandy actually drowned at the beach (remember when Danny sings, "I saved her life; she nearly drowned" in "Summer Nights"?) and the entire movie is just a fantasy sequence playing in Sandy's head as she dies, with the last scene in the car signifying Sandy being sent up to heaven. Talk about the lyric "I've got chills, they're multiplying!"

If there's one thing every superhero fanatic remembers from this iconic Batman film from 2008, it's Heath Ledger's legendary performance as the Joker that earned him a posthumous Oscar. With a character as complex as the Joker, though, there are, of course, a lot of theories as to how he became one of the best fictional supervillains ...

Many Batman fans have speculated about the Joker's origin story, but no theory has been as compelling as the one that suggests that the villain was a former soldier in the Iraq War who is suffering from PTSD. This not only explains his facial scarring and his extensive knowledge of explosives and firearms, but also suggests a deeper insight into his madness and tortured psyche.

In one scene, for example, the Joker mentions rather bitterly in one scene that no one would "bat an eye" if "a truckload of soldiers" got blown up. Could it be that his disgust stems from his status as a disgruntled and mentally unbalanced war veteran?

If you love '80s movies, you might remember this iconic John Hughes teen comedy about a high school senior who decides to play hooky from school. But have you ever thought about how in spite of the title, the movie's emotional core actually relies not on the titular Ferris Bueller, but his best buddy, Cameron?

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According to one long-standing theory about the classic teen flick, the character of Ferris doesn't actually exist, but is actually a hallucinatory embodiment made up in Cameron's head. This all makes sense given the contrast between the confident, popular Ferris and the awkward, self-despising Cameron: Ferris is the kind of guy who Cameron actually wants to be!

If we follow this premise, the adventures that take place in the movie are actually figments of Cameron's imagination, conjured up in his head as he lives out his dreams through his imaginary friend Ferris.

Everyone knows this iconic movie based on the famous children's story by Roald Dahl: An eccentric chocolatier decides to give out golden tickets to five lucky children for an exclusive tour of his chocolate factory. But have you ever wondered if there's more to the mysterious character of Willy Wonka than meets the eye?

If you ever thought there was something a little creepy about this sugary tale, you're not alone: Many people have speculated that Willy Wonka is actually a calculated murderer who takes delight in luring the children into his factory, planning out each of their demises as part of a Saw-esque scheme.

This explains why Wonka is completely unfazed by their various "accidents" throughout the film — and also why the Oompa-Loompas are always ready with a pre-prepared song and dance routine as each child faces their fate. Talk about a dark twist on a classic kid's story!

With an epic story spanning seven books and eight movies (and plenty of spin-0ff franchises, too), it's no surprise that the Harry Potter series invites a lot of fan speculation about its magical world. But this one particular theory involves not wizards, but instead one well-known family of Muggles ...

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Any Potterhead remembers how unkind the Dursleys were to Harry throughout the series — but what if there was a good explanation for it? According to one theory, the reason that Harry's aunt, uncle, and cousin were so awful to him was because Harry (spoiler alert!) was one of Voldemort's Horcruxes.

As we know, Horcruxes negatively impact their surroundings, such as when Harry's, Ron's, and Hermione's moods were affected by the Slytherin locket they took turns wearing in Deathly Hallows. Since Harry was a Horcrux, it definitely would make sense that he'd negatively affect the people he lived with for so many years, wouldn't it?

Perhaps the most well-known spy film franchise in the world, the most recent reboot of the James Bond series has Daniel Craig portraying the famous MI6 agent. But with a total of six different actors having played 007 since 1962, the biggest question from the franchise regards the continuity of the different films: How can the same Bond be forever young as the decades pass?

To explain the continuity problem of the Bond franchise, a popular theory suggests that "James Bond" is not a singular person, but is actually just a code name that's given to multiple MI6 agents over the years.

This would certainly explain why the character’s appearance, age, and even personality have all changed over the past 50 years — and why he never ages or dies after so many dangerous missions. Furthermore, the theory would also explain why the agent loves to flaunt his name to his enemies despite the obvious threat — it's because "James Bond" isn't actually his real name!

Aladdin is another one of those classic children's films that seems pretty straightforward: A poor street urchin stumbles on a magic lamp that grants him three wishes. So wait, how could there be an elaborate theory about this enchanting story of Aladdin? (Here's a hint: It involves the Genie.)

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Ever wonder how Genie made so many pop culture references (like that spot-on Arnold Schwarzenegger impression!) despite having been locked up in the lamp for 10,000 years? One hypothesis suggests that Aladdin isn't actually set in the past as many might believe, but is in fact set in a post-apocalyptic future where only a few countries in Arabia (called Agrabah in the future) survived.

Just recall that one scene where Genie calls Aladdin's clothes "so third century." If Genie remembers the third century and spent 10,000 years in the lamp, that means the year would be at least 10,300 A.D. when he finally gets out!

Arguably one of the most influential movies of the '90s, this cult classic crime film from Quentin Tarantino details several interconnected stories of criminal L.A. — and subsequently can't help but invite a lot of fan speculation, particularly regarding the contents of one particular briefcase sought by the film's main characters ...

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The contents of the case is one of Pulp Fiction's most enduring mysteries — but there's one popular theory that puts the much-debated topic to rest. Many fans theorize that the briefcase retrieved by the hitmen contains the soul of their gangster boss, Marsellus Wallace, who had previously sold his soul to the devil.

Just recall the lock code to the case ('666', a number famously associated with the devil) and the bandage on the back of Marsellus' head (which correlates to biblical text that says the devil steals your soul from the back of your head). Plus, what else can explain that heavenly glow emanating from the briefcase?

There's plenty of Marvel Cinematic Universe (MCU) theories out there, of course, but did you know there's one compelling Easter egg theory in the sequel film of Iron Man? Here's a hint: It involves one specific scene near the end of the movie, where Iron Man saves a little kid at the Stark Expo event ...

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That's right — many Marvel fans have long speculated that the little kid behind the mask that Iron Man saved at the Stark Expo is none other than Spiderman's Peter Parker. Never mind that Spiderman didn't officially enter the MCU until 2016 — we all know that if there was a giant science exposition in his hometown neighborhood of Queens, young Peter would definitely find a way to be there!

Don't believe it to be true? The best part is that Spiderman's Tom Holland actually confirmed the theory in a 2016 interview with Huffington Post, proving that fan theories can definitely be accurate after all.

With a charming storyline about a boy who must protect his home after being left behind by his family, Home Alone is one of those classic holiday movies you can watch any time of year. But one theory puts a much darker spin on the family film by connecting the young Kevin McAllister with another famous movie character — can you guess which one?

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According to one theory, Home Alone is the origin story of the serial killer Jigsaw, otherwise known as John Kramer, from the Saw horror movies! Proponents of this theory point to the numerous connections linking Kevin to Jigsaw, including a nearly identical appearance, violent tendencies, and a similar knack for booby traps.

Still not convinced? Think about how Kevin's feared childhood basement seems to be recreated in Saw II; in one scene in particular, Kevin hallucinates the furnace as a monster — which very well might have inspired his act of burning someone alive in a furnace as Jigsaw later on!

With no shortage of sudden plot twists and elaborate sci-fi scenarios, it's no surprise that this mind-bending film about the complex world of dreams has an abundance of wild fan theories. But perhaps the most discussed part of the movie? That total cliffhanger ending which never signifies whether the main character, Dom Cobb, is awake or still dreaming ...

The much debated ending of Inception revolves around the spinning top that Cobb uses as a "totem" (an object that dreamers use to distinguish between reality and dreams). But what if Cobb's totem wasn't the top at all?

Instead of the top (which actually originally belonged to his late wife!), one fan theory suggests that Cobb's true totem is actually his wedding ring — after all, he's seen wearing the ring in every sequence in which he's a dream, but not when he's awake. This would certainly solve the movie's biggest mystery of whether Cobb is awake at the ending (he is!), as his wedding ring is clearly absent in the very last scene.

This animated Pixar film series tells the imaginative tale of a young boy's toys coming alive and going on fun-packed adventures — but could there be more to the four-part story you missed? It's definitely likely, as Pixar is known for putting so many Easter eggs in their movies ...

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Most people have probably forgotten the very first Toy Story movie, but eagle-eyed fans noticed something in the third film: the garbage man briefly seen in one scene bears close resemblance (and even wears the same shirt!) as Sid, Andy's neighbor, who tormented the toys in the first film — then got a scare when Woody and his friends revealed themselves as being "alive."

The theory goes even further to say that the reason Sid becomes a garbageman is to save all the toys from being thrown away, having discovered that they're alive as a kid. After all, a shocking revelation like that would definitely change someone's ways, wouldn't it?

This 1980 adaptation of Stephen King's famous novel is one of the most memorable horror films to date — so naturally, there are a lot of fan theories about the chilling story of Jack Torrance as he settles into a Colorado hotel with his wife and his son, Danny. But one particular theory actually examines the intentions of the movie's director, Stanley Kubrick ...

This one might be the most out-of-this-world theory yet: According to some conspiracy theorists, The Shining is Kubrick's secret confession for working with the government to stage the Apollo 11 moon landing in 1969.

Consider the evidence: The film changes the haunted room's number to 237 — originally 217 in the novel — because the average distance from the Earth to the Moon is 237,000 miles (it's now known to be 238,900), and also changes the book's single slain child into those creepy twins as a nod to NASA's Gemini program. An even more overt detail from that same scene? Danny's sweater features a rocket labeled "Apollo 11."

Perhaps one of the most watched films of all time, this 1983 musical fantasy film is a true timeless classic — especially with the dozens of symbols and allegories that lends the movie to a variety of interpretations. But one theory calls attention to the ending, in which Dorothy wakes up to find that it was all a dream ...

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What if Dorothy's time in Oz wasn't a dream at all, but an alternate reality? Based on the fact that nearly every major figure Dorothy meets in Oz has a counterpart in her real life from Kansas, one wild fan theory suggests that Dorothy also has a parallel counterpart in the alternate reality ... and it's none other than the Wicked Witch of the East.

Just think about how we never see the face of Wicked Witch of the East before she conveniently gets crushed by Dorothy's house — and how strangely, the only thing we know about her is that she and Dorothy have the same shoe size. Coincidence? Many fans certainly don't think so ...

So we'll definitely need to talk about Fight Club if we're discussing best movie theories, as this memorable film lends itself to much speculation — especially with that iconic plot twist ending no one saw coming (spoilers ahead)! One particular theory connects the main characters, an unnamed narrator and soap salesman Tyler Durden, to a certain famous comic duo ...

Sure, the movie's biggest plot twist is that Tyler isn't actually real and is in fact the narrator's hallucination — but what if an even bigger twist is that the two characters are actually Calvin and Hobbes from the famous beloved comic?

According to this hypothesis, a young Calvin who used to create an imaginary friend out of a stuffed tiger grows up to be none other than the narrator (he's unnamed, after all) who reimagines his childhood friend as Tyler. The roots of their secretive men-only fight club? The exclusive boys-only club in Calvin and Hobbes, G.R.O.S.S. (Get Rid of Slimy girlS), that they created as children!

It's hard to imagine how a fan theory could shake up the plot of this fan-favorite children's movie, telling the imaginative story of a monster-ridden world in which the screams of human children are turned into a clean, renewable source of energy. But have you ever wondered why exactly kids are considered contagious and toxic in the monster world?

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Talk about a blast from the past: This legendary '80s film is considered a true timeless flick for a reason, chronicling the time-traveling exploits of Marty McFly and Doc Brown. But what if there was a dark theory that changes the way you look at a character — and one unforgettable scene in particular?

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Ever wonder why in one scene, Doc Brown — after talking about that his inventions never work — puts himself directly in the path of the speeding DeLorean as he tests his time machine invention in the parking lot? Well, some fans speculate that Doc was actually ready to give it all up, including his own life.

This particularly dark theory posits that Doc was depressed from his failures as an inventor, and had chosen to take his life through another of his inventions that he expected to fail. But there's another detail that makes the hypothesis even darker — Doc grabs Marty when he tries to run in that same scene, leading many fans to believe that it was actually a murder-suicide attempt.

Steven Spielberg's iconic film about a theme park full of dinosaurs was a massive blockbuster when it first came out — so much so that it still lives on now in the continuing Jurassic World series. But if you remember the key premise of the movie (and the entire franchise), it's that dinosaurs were able to brought back to life with discovered DNA from mosquitos preserved in amber. But what if this wasn't actually true?

According to one theory that posits that the dinosaurs aren't real, Jurassic Park is actually an elaborate scheme of park creator John Hammond to make profit from a deceptive spectacle. In other words, he created the dinosaurs from a mix of existing animal DNA into what people think they look like!

Not convinced? Just recall Hammond's speech about how he started his career with a flea circus designed to trick children, which certainly suggests that he has no problem earning his fortune on selling people false realities. Plus, the theory would definitely explain why the park's dinosaurs are pretty historically inaccurate (none of them had feathers and many weren't the correct size!).