Frogman, I was in Haiti about 3 years after this movie was made, and Haiti was very much like the movie, "weird beyond belief". In regard to the voodoo music, it's like the air they breath; we were riding up a mountain trail on a half ass (that's a cross between a horse and a donkey) in "Cap Haitian", and on the side of the road, one kid was beating out this voodoo rhythm on a metal shovel that had been left by a road crew, while other kids were dancing to the music like their bodies had no bones. They did this to amuse themselves, it had nothing to do with tourism or anything else.
I only saw the movie many years after I had gone to Haiti, had I seen the movie first, I would not have gone to Haiti. Movies can come very close to reality.
http://www.youtube.com/watch?v=TOoFiCgcprU