Okay, theres space for one more odd fact about Christian Bales American Psycho preparation before its time to wrap things up. You know all of the sex scenes in the movie? Theyre more meticulously planned than you might think. With Mary Harron, Bale watched X-Rated films to research how to stage the sex scenes just right. So the next time you have an awkward moment at work involving your boss, just be thankful that you dont need to watch porn together. The weirdness didnt stop there, either. According to the DVD commentary, Bale even made stick figure drawings to explain the positions he thought would work best for the first threesome scene. Its probably same to assume that they werent as gruesome as Batemans drawings, though.