9. Requiem for a Dream (2000)
Director: Darren Aronofsky
Being perhaps the most grounded, and therefore horrifying, depiction of drug addition to ever be put on film, Requiem for a Dream is a stylized psychological thriller that shows the desperation of people chasing the dragon. Putting its focus on the lives of four addicts, Darren Aronofsky digs deep into the dark and twisted world these people inhabit and the self-made prisons of their own lives.
What Aronofsky does to make this a disturbing classic is that he is completely unflinching in the physical and psychological depictions of all of these characters. Their paranoid, depraved actions get under your skin right from the start as we witness these once-well-adjusted people spiral out of control.
Between Jared Leto’s gangrenous arm and Jennifer Connelly’s infamous sex show scene, there are images throughout this film that will stick with you well after the closing credits. Add the appropriately pounding score by Clint Mansell and you have one of the most vile, yet engrossing, movies to ever tackle the subject.