Coralie Fargeat's bloody-as-hell satire lets the star flip the bird to showbiz's youth obsessions and beauty double standards - in the best (and grossest) way imaginable

From daunting high-energy choreography to nine-hour prosthetic application, the stars tell EW "The Substance" was a satisfyingly grueling, months-long shoot.

It's long been a fact of Hollywood - ageing actresses have a tough time getting roles and many do whatever they can to appear younger. One of those, whose fame has somewhat faded but wants to return to her youthful appearance,