Diane Lane on ‘Feud: Capote Vs. The Swans’.Photo:Pari Dukovic/FX

Diane Lane as Slim Keith

Pari Dukovic/FX

“I got to meet some of these characters,Gloria VanderbiltandLee Radziwill, and there was still an aura of betrayal,” Lane, 59, tells PEOPLE of the swans’ fallout with Capote. “This was right around the time when Truman Capote died.”

Lee Radziwill.Reg Burkett/Express/Getty

Lee Radziwill

Reg Burkett/Express/Getty

Calista Flockhartportrays the late Radziwill onFeudopposite fellow swansDemi Moore,Molly Ringwald,Chloë SevignyandNaomi Watts.

Calista Flockhart on ‘Feud: Capote Vs. The Swans’.Pari Dukovic/FX

Calista Flockhart as Lee Radziwill

Capote’s friendship with Manhattan’s top socialites deteriorated after he published “La Côte Basque, 1965,” a chapter from his bookAnswered Prayersthat aired out the women’s secrets, including an affair Babe Paley’s (Watts) husband supposedly had with the wife of a New York governor and an allegation that Ann Woodward (Moore) murdered her husband. (The1955 shooting of Ann’s husband, William Jr., had been deemed an accident.)

“To be a celebrity was to have a moat around you that meant that you had a private life, which of course invites scrutiny and questioning and wondering,” Lane says of being in the spotlight in the ‘60s and ‘70s. “I think it’s at your own peril these days. If you try to pretend that you are not of the people, it’s less and less that you can get away with that kind of exclusivity.”

Lee Radziwill and Truman Capote in 1967.Bettmann Archive

Lee Radziwill (L) and Truman Capote

Bettmann Archive

Today, thanks to social media and the internet, intimate details of the lives of public figures reach millions of people each day, whether they want them to or not.

“Maybe Truman was the first domino in the culture shift then,” Lane speculates.

The Oscar nominee prefers to stay away from the likes of Instagram and X, formerly known as Twitter.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

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

source: people.com