Wow! An excellent movie w/ very good cinematography, especially during the headache scenes. My only disappointment was the ending, I think the movie could've gone on a bit longer and gotten more complex. Soundtrack was very cool, featuring Massive Attack and Orbital, among others. I recommend this one, it's a treat for the brain.

Allow mw to validate your taste, Sem. Pi rocks. Like Eraserhead but with a plot. I was really suspicious of the phrase "mathematical thriller" but was happilly surprised. Arty, yet compelling. I've put my name on the list at my local video store to buy a used copy when the new release copies go up on the block. And if electronica is your taste by all means buy the soundtrack- the incidental music is by an ex-member of Pop Will Eat Itself and is also nearly flawless.