Are you familiar with their contributions to Zabriskie Point? The most notable piece they contributed was a rerecording of "Careful With That Axe, Eugene", which appears in the (somewhat NSFW, but kinda awesome) trailer and in the ending (which I can only describe as artsy Jerry Bruckheimer, as oxymoronic as that sounds). Among their other contributions to the soundtrack are the most C&W-esque stuff PF ever did, and "Us and Them" was rooted in a Wright piece that was rejected by the director.