Demi Moore, Naked and Liberated Demi Moore, Naked and Liberated

As she prepares for her first Oscars as a nominee, the star of “The Substance” talks about the daring role that revitalized her career.

Demi Moore is the star of one of the goriest, most audacious films ever nominated for an Oscar, the feminist body-horror satire “The Substance.” Onscreen, Moore, 62, dissolves and mutates in often grisly ways — nude, and in extreme close-up. And she could not be more self-actualized about it.

The role required “wrestling with the flashes of my own insecurity and ego,” Moore explained. “I was being asked to share those things that I don’t necessarily want people to see.”

She was speaking in a video interview last week, dressed in casual black and big glasses, twisting and tucking her legs under her, on her office couch, with every thought. Filming through that discomfort was a “gift — silver lining, blessing, whatever you want to call it,” she continued. “Once you put it all out there, what else is there? There’s nothing to hide. Being able to let go was another layer of liberation for me.” The following night, she won the Critics Choice prize for best actress.

Her career and cultural resurgence is overdue, said Ryan Murphy, the showrunner and a friend who at long last convinced her to work with him in last year’s “Feud: Capote vs. The Swans.” She had the beauty and aura of an old-school movie star, he said, with the professional discipline to match, but the flexibility of a seeker: “Game to do anything,” he said. “She’s a pathfinder. We all talk about what she’s done for the business and for other women.”

And, he added, “she is one of the most emotionally intelligent people that you’ll ever meet. Whenever I have an emotional dilemma or I need advice, I do not go to my shrink — I go to her.”