Demi Moore shares having a constant ‘sober companion’ during St. Elmo's Fire filming

Demi Moore opens up about her early experiences in fame in a new documentary.

Andrew McCarthy’s film "BRATS," premiered at the Tribeca Festival, offers a retrospective look at the so-called Brat Pack, featuring interviews with 1980s icons like Moore, Emilio Estevez, Rob Lowe, Jon Cryer, Lea Thompson, Timothy Hutton, and others.

McCarthy reconnects with Moore and many of their co-stars from the 1985 classic "St. Elmo's Fire," reflecting on their careers over 40 years after the term "Brat Pack" was coined in a New York magazine article by David Blum.

“I was so fearful of failing, fearful of losing, and so desperate to fit in, belong,” says Moore, now 61, of filming St. Elmo’s Fire. “My need to please was definitely on high alert.”

Plus, a round-the-clock “sober companion” for her was arranged, she reveals: “They paid to have a sober companion with me 24/7, during the whole shooting.”

Moore recalls “going to treatment” at a rehab facility where staff objected to her starting work on St. Elmo’s Fire.

“They said, ‘What’s more important to you, the movie or your life?’ And I said, ‘The movie! What are you talking about?’ ” shared the actress. 

At the time, she added, “I didn’t have any value for myself.