We felt like we knew each other,” Demi Moore tells PEOPLE of Margaret Qualley, her costar in Coralie Fargeat’s horror movie Demi Moore and Margaret Qualley had a personal connection offscreen long before sharing one onscreen in their new movie The Substance.

The actress is seemingly everywhere this year, and in “The Substance,” she delves into an unusually disturbing new role.

"Unfortunately there is no magic boob potion, so we had to glue those on," the actress said of playing her character, Sue, in the body-horror film

Moore and Qualley give bravura performances, both surely having faced the scrutiny women in Hollywood and the world are under. Moore allows the camera to film closeups of her thighs and the stomach of a woman who has had kids,

The stars of the body horror film hit the red carpet for its L.A. premiere on Sept. 16 Chelsea Lauren/Shutterstock Scout Willis, Tallulah Willis, Demi Moore and Rumer Willis Demi Moore, Margaret Qualley and Dennis Quaid are bringing the scares with their new film,