History of the World: Part I [1981]
Mel Brooks's 1981, three-part comedy--set in the Stone Age, the Roman Empire, and the French Revolution--is pure guilty pleasure. Narrated by Orson Welles and featuring a lot of famous faces in guest appearances (beyond the official cast), the film opens well with Sid Caesar playing a caveman, then moves along to the unlikely but somehow hilarious juxtaposition of Caesar's soldiers (the other Caesar, not Sid) with pot humor, and ends on a dumb-funny note in the French bloodbath. This is a take-it-or-leave-it movie, and it works best if you're in a take-it-or-leave-it mood. --Tom Keogh