Released without a rating and billed as "the most vile, disgusting, and vulgar" film of all time, "The Aristocrats" is also funny enough to qualify as a minor comedy classic. We say "minor" only because hearing the same foul joke told by 100 celebrated comedians is inevitably exhausting, even though the shaggy-dog gag (a vintage in-joke among comedians, allowing outrageously obscene improvisation, and always ending with the same titular punchline) is also a fascinating litmus test for each comedian's irreverent style. As codirectors and show-biz insiders, veteran comedians Paul Provenza and Penn Jillette (from the comedy duo Penn & Teller) corralled an unprecedented parade of stand-up celebrities (George Carlin, Robin Williams, Drew Carey, Whoopi Goldberg, Sarah Silverman, the "South Park" kids and many, many more), each telling "the dirtiest joke of all time" in their own inimitable fashion. The sheer volume of vaudevillian vulgarity takes on a life of its own, more fascinating than funny, until Gilbert Gottfried (at a celebrity roast for Hugh Hefner, shortly after the terrorist attacks of 9/11/01) tells what is unanimously hailed as the definitive version of the joke. It's a matter of context, style, and bawdy bravado, and for better or worse, "The Aristocrats" will endure as a testament to a joke so bad--so uproariously bad--that no comedian worthy of the profession can resist the temptation to tell it. "--Jeff Shannon"