Film lovers on the internet are obsessed with Coralie Fargeat’s “The Substance.” The film stars Demi Moore as a television personality named Elisabeth Sparkle, who opts to take a radical drug that creates a younger version of herself (the monosyllabic Sue, played by Margaret Qualley) to maintain her celebrity and avoid a life of obscurity after her 50th birthday. Of course, things do not go as planned for Elisabeth Sparkle, as she ends up abusing the rules of The Substance in order to spend mor…