You can also watch the horror film “Never Let Go” starring Halle Berry, the documentary “Full Force” about the heroism of Ukrainian military helicopter pilots, the melodrama “Beautiful Imperfection,” and the anime “My Heroic Academy: You’re Next.” The Substance. From Oct. 10.Margaret Qualley and Demi Moore star in a bold and inventive body-horror film that’s been the talk of Cannes. Moore plays Elizabeth, a superstar at a career crossroads as she turns 50 and faces being replaced by a younger actress. In her panic, Elizabeth is offered a substance that promises to create “the best version of h…