Interesting enough concept, not sure about the execution. I thought the story could have been fleshed out a little more. I won't knock anybody who comes up with an original movie idea, but I think Aronofsky compensated for having a somewhat thin plot by being needlessly enigmatic.

I didn't dislike it, bit definetly doesn't deserves to be between the 100 greatest sci-fi movies.

I loved the concept behind the movie, but I thought that it completely failed in its execution. There were just too many pretentious, melodramatic moments that took away from the fantastic idea that was trying to be conveyed.

Of course, that's just my opinion. Looking at the rating on imdb and the comments, it seems like most enjoyed the film. I guess it just wasn't for me :/