well personally, from movies, they have to talk to me, or be of very good quality, or explore a certain aspect of something. Having said that, its not a surprise my favourite films are fight club and pulp fiction.
I liked I, Robot. It's far from perfect, but it's a good movie. Unfortunately, it was ruined for me a bit by the film coming off the reel at the cinema, resulting in me missing about a minute of the climax!