Demi Moore Snagged a Pair of Vintage Gucci Boots from the “Feud” Set: They ‘Had to Live in My Closet’ (Exclusive)

"Part of the joy of doing a period piece is really stepping in," the actress, who portrays Ann Woodward in 'Feud: Capote Vs. The Swans,' tells PEOPLE

<p>Pari Dukovic/FX </p> Demi Moore on

Pari Dukovic/FX

Demi Moore on 'Feud: Capote Vs. The Swans'

With all of the glam clothes and accessories on the set of Feud: Capote Vs. The Swans, Demi Moore couldn’t help but swipe some for herself.

“There was a pair of vintage Gucci boots that happened to be brand new from the ‘70s,” Moore, who portrays Ann Woodward, tells PEOPLE in this week’s issue. “They were my size. Had to go. Had to go live in my closet.”

Moore, 61, stars alongside Calista Flockhart, Diane Lane, Molly Ringwald, Chloë Sevigny and Naomi Watts as playing Truman Capote’s swans, Manhattan socialites who dominated the city’s social scene in the ‘60s and ‘70s.

Related: How Calista Flockhart Channeled Her Grandmother to Play Lee Radziwill in Feud: Capote vs. The Swans (Exclusive)

“Part of the joy of doing a period piece is really stepping in,” Moore says. “If you really appreciate that, it can really be a great joy. Stepping into the hairdo for me was a little bit shocking! it just was so altering to how you look and relate to yourself.”

The mom of three points out that women have been setting the trends since way before the swans dominated best-dressed lists.

“If anybody's been watching Gilded Age, you would see what we've come from and how that social setup of new money versus old money, and even just how that evolved into who was really running things. At that time, those women were really the trendsetters,” she says. “They were really setting the tone for what others want to wear and where they would want to go and what they would want to do.”

For more on Feud: Capote Vs. The Swans, pick up the latest issue of PEOPLE, on newsstands now, or subscribe here.

Constantly in the spotlight, the swans strived for perfection. “In a way, we need people to be aspirational for all of us, and I think at that time they were that,” Moore says of the swans. “What's interesting is that the underneath was nothing like the glamour that the outside was appearing to be.”

Capote aired some of that dirty laundry in his 1975 piece "La Côte Basque, 1965," which resulted in the swans shunning him from their circle.

<p>Jackson Lee/GC Images</p> Demi Moore

Jackson Lee/GC Images

Demi Moore

“One of the interesting things [in the show] is the focus that was on what other people think,” Moore says. “And not that we've moved that far away from it, but how much power was being given to reputation, and how destructive and self-destructive that was to their existence.”

Today, the internet and social media plays a major role into shaping public opinion. “I think that that's kind of interesting, seeing the parallels of what's changed and what hasn't,” Moore says.

Related: See the Stars of Feud: Capote vs. The Swans Compared to the Real-Life Socialites They Play

She doesn’t try to pay social media much mind.

“For me at least, that there's an awareness that exists, but I think it's a choice of whether you let it dictate how you want to live your life and who you want to be,” the G.I. Jane star says. “It's really the difference of how much power do you really want to give it.”

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Feud: Capote Vs. The Swans airs Wednesdays at 10 p.m. ET on FX.

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