Dave at 2011-07-17 15:06:41:
I think you guys are over estimating these story "Theories". "Million Dollar Baby" had about three themes going and it flip flopped between protagonists. The story was clunky, messy, and not focused but won a bunch of Academy Awards and made a lot of money.
Multiple themes or story threads will not sink a movie. Certainly many focused, structured, solid stories flop every year.
Making a successful movie is more based on randomness.