Allison Williams and Christopher Walken [1] have some pretty big shoes to fill for NBC's production of Peter Pan Live! [2] Judging by the looks of this teaser, however, they're doing just fine putting their own spin on the classic characters. New footage of rehearsals for the live show is brief but interesting. Watch Williams as she flies and sings as Peter Pan and Walken in all of his Captain Hook glory. Sure, the pictures [3] are great, but they don't quite give you a sense of what Williams is going to be like in this role. These teasers are one step closer, though we won't know for sure until Dec. 4!

Get a peek at the first teaser below.