Margaret Qualley costars in this gory — like, really gory! — satire about beauty and aging The Substance, a corrosively vicious horror satire with a career-resuscitating turn by Demi Moore, begins with an inspired if not very kind joke: You’re looking down the Hollywood Walk of Fame as a fresh,

When it comes to upcoming horror movies, one of this year’s best may be hitting theaters this weekend, with Demi Moore ’s body horror flick The Substance causing quite a stir amongst critics since its premiere at Cannes.