Perhaps not in the dystopian genre but 3 movies that started out as novels which potentially could happen in reality
Atlas Shrugged-Ayn Rand
Transcendence - movie staring Johnny Depp about AI
Never Let Me Go - novel written by Kazuo Ishiguro that was turned into a movie
Never Let Me Go is an underseen gem. My current pitch to people is that it’s the best prolife movie you’ve never seen. Granted, abortion is never mentioned in the film, but the moral question is the same.