I've heard some good buzz about The Aristocrats. It's opening tomorrow in L.A. and New York, and then going national during August. The AMC movie chain has banned the film.

If you want to hear the dirtiest joke ever told ... don't bother heading for your local AMC megaplex. The theater chain has decided not to show the buzzed-about documentary "The Aristocrats" on any of its 3,500-plus screens, and the filmmakers aren't laughing. The $20,000 unrated film features 102 comedians, each telling the same infamous joke—involving a XXX stage act—passed down from comic to comic since vaudeville. (The punch line is the film's title.) Despite great test screenings—and a cast with figures ranging from Jon Stewart to Phyllis Diller—AMC's film group chairman, Dick Walsh, decided, according to a company spokeswoman, the film "would have very narrow appeal."