Due to time constraints, Persin subcontracted the build of Monstro Eliasue’s suit to a U.K.-based company. “We had two full suits, one for a stunt double, and a half-built suit for Margaret, which she wore for closeups.” Persin and his team took care of all the effects, including the boob that squeezes out of one of Monstro’s many holes.

Who would ever want to turn Demi Moore into a monster? That’s precisely what director and writer Coralie Fargeat does in Moore’s latest film, The Substance, which is in theaters now. And as it happens,

Demi Moore has provided a glimpse into how she filmed intense, gory scenes for her new horror film ‘The Substance’

“The Substance” was lauded upon its premiere at the Cannes Film Festival earlier this year, where it was up for the Palme d’Or and won the best screenplay award. Earlier this month, it took home the Midnight Madness people’s choice award at the Toronto International Film Fest. “The Substance” is currently playing in theaters.

Demi Moore tells PEOPLE she hadn't met Margaret Qualley before becoming her costar in Coralie Fargeat’s new horror movie 'The Substance,' but had enough 'indirect connections' that they 'felt like we

Demi Moore plays Elisabeth Sparkle in ‘The Substance,’ a satirical horror that focuses on the pressures of body standards.

The new body-horror movie "The Substance" is a wild time, It also took co-stars Demi Moore and Margaret Qualley way out of their comfort zones.

The actress stars alongside Margaret Qualley and Dennis Quaid in Coralie Fargeat’s gleefully grotesque movie about an aging celebrity who takes an experimental drug that gives her a younger self.

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.

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.

The Substance, starring Demi Moore, is a bright and showy body horror film about aging and the hypersexualization of the female body. But it doesn’t go much further than illustrating at great length that there are nasty cultural attitudes toward older women.