Because I was studying these kinds of movies so carefully, I...

Because I was studying these kinds of movies so carefully, I realized how obvious their basic structure is, so I decided to reverse it. When you're playing with very known patterns of narrative events, you just have to twist one little thing, and it suddenly becomes very original. It's kind of like what Alfred Hitchcock did in Psycho . There's a sadistic pleasure to watching an audience realize you've broken the rules and anything goes.