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Harry Potter and the Deathly Hallows: Part 2 comes out Friday, so naturally we'll be seeing its stars hit the talk show circuit this week. Emma Watson got the ball rolling with an appearance on tonight's Late Show, during which she was asked by David Letterman about co-star Daniel Radcliffe's recent admission that he's a recovering alcoholic. And as if that wasn't awkward enough on its own, Letterman then spent the better part of two minutes pestering Watson for details related to her own alcohol use. Video of the whole bit is above.