In the movie, there is only 2-3 lines of dialogue. the rest is filled in by songs from the album, I think there are 3 or 4 songs that arent on the album. If you havent seen it, it's about a rock-star named Pink who slowly and agonizingly descends into a state of madness, self-loathing, and facist-related skitzophrenia, by erecting a mental wall to block himself out from the horrible world which exsists around him. Much of the story is told through metaphors and can be very confusing at times. For a complete analysis of the film, go to this site.....
http://members.surfsouth.com/%7Ebreezy/Intro.html
But I feel that the movie surpassed the album only because it did an extrodinary job of demonstrating a mix of music and mind-stunning visuals. The movie almost makes you feel as if you yourself, have gone completely insane. And the fact that only a few words were spoken by actors while the band really told the story is what truly made the movie great.