The Big Bus | 1975
This "disaster movie" parody is set aboard a nonstop, nuclear-powered luxury bus commandeered by Joseph Bologna. Naturally, Bologna is a tortured hero with a deep dark secret (he keeps insisting he didn't eat all those passengers on his last disastrous drive). The designers of the Big Bus also have a few skeletons in their closet. In fact, there isn't a passenger on the manifest that isn't hiding something.