Worst. Movie. Ever.
Vote early, vote often. Slashdot asks "what's the worst movie you've ever seen?"
I'm tempted to say Santa Claus Conquers the Martians, but that'd just be too easy. For my "official" vote, I'm going with a more recent vintage, higher budget film: Portrait of a Lady. Pee-yoo! Even an Ed Wood movie is sporadically entertaining, even if only for how bad it is. PoaL, however, is solidly, unrelentingly boring from the first frame to the last -- the longest 2 and a half hours of my life.