By Kate Ward
Updated November 03, 2011 at 09:55 PM EDT

Adolescent. Hypochondriac. The Antichrist. These are just a few descriptors Woody Allen’s friends(!) use to characterize him in PBS’ upcoming American Masters — Woody Allen: A Documentary. But I think my favorite quotes comes from Annie Hall star and one-time Allen paramour Diane Keaton. “On the one hand he’d be brilliant and his insights were amazing,” she says in the exclusive sneak peek at the documentary, embedded after the jump. “But on the other hand, he’d be an idiot.” Spoken like a true ex-girlfriend!

Keaton isn’t the only A-list star to toast the 75-year-old director’s achievements. Big names like Naomi Watts, Sean Penn, Chris Rock, Scarlett Johansson, and Martin Scorsese also sing Allen’s praises. Says Penn, for example: “It’s not just that we’re still interested in Woody Allen, he’s still interested in telling stories.”

So are you still interested in Allen? If so, the two-part American Masters — Woody Allen: A Documentary airs Nov. 20 and Nov. 21 at 9 p.m. ET. Watch the exclusive sneak peek after the jump, and giggle at the mere sight of clips from Bananas and Sleeper.

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