at the risk of being labelled a stoner, try this.
you have, i am sure, heard of people watching 'the wizard of oz' while listening to 'the dark side of the moon' with interesting results.
well, my friends and i occasionally do the same with koyaanisqatsi and the moby album 'i like to score'. if you start the cd just as the red letters appear on screen, it makes a really nice alternative soundtrack to the movie.
the original soundtrack is, for sure, wonderful.
alasdair