I just finished watching this movie, and all I can say is "WHAT?"
The plot makes no sense, the "back story" is unintelligible, and the movie doesn't know when to be serious and when to be funny; it just oscillates between the two moods throughout.
Another point that bothered me is that there is no flow to the story. Instead, the viewer is presented with episodic weirdness, ranging from car chases to impromptu dust storms (which looks suspiciously like a device to cover up technical issues during the final chase.) So if you want a far-out, nonsensical, and altogether incongruous movie, this is for you. Otherwise, check out something more coherent, like "Half-Baked."