Is she fat enough? How many boobs? Maybe we should add a jaw here.” The special effects artist behind Moore’s transformation in “The Substance” tells us how they pulled it off.

In her new film, the actress plays an aging TV star who finds a sinister potion that can give her a younger, more perfect version of herself, but at a horrifying price. Moore, now 61, talks about having suffered due to the entertainment industry's toxic expectations of beauty.

The premise and plot of “The Substance” are simple: celebrated actress and fitness guru Elisabeth Sparkle ( Demi Moore, in a scenery-chewing performance) has a star on the Walk of Fame and a popular exercise show.

Demi Moore was a troubled member of the "Brat Pack," who overcame esteem issues and became the highest-paid actress in Hollywood, starring in such films as "Indecent Proposal," "Charlie's Angels" and "Striptease.