Allison Williams Dishes with Andy Cohen on Christopher Walken's "Peter Pan" Rehearsal Quirks by Adam Hetrick

Peter Pan Live! star Allison Williams stopped by "Watch What Happens Live" Nov. 20 to talk about her upcoming musical project and her co-star, Christopher Walken, with host Andy Cohen.

SOURCE: Playbill at 02:06PM on November 21, 2014

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