Every film that has already been mentioned in here I agree with. But i’m also going to throw out The Exorcist 3 (Legion). I think the film is ciminally underrated and is one of the best thrillers put to screen. Being an exeptional sequel and incredibly faithful to the book it was sourced from. Although that’s probably because the author of the book wrote the screenplay and directed it. If anyone hasn’t seen this movie I Highly recommend it as the true (and in my mind ONLY) sequel to the exorcist.