VIDEO: In Rehearsal with Allison Williams and More for NBC's PETER PAN LIVE!

ET just revealed an exclusive behind-the-scenes look at the company of NBC's PETER PAN LIVE! in rehearsals, plus an interview with star Allison Williams and vintage footage of Mary Martin as 'Pan' in the mid '50s and early '60s. watch!

In other "Pan"-related news, NBC will telecast "The MAKING OF Peter Pan Live!" on Wednesday, Nov. 26 at 8 p.m. ET/PT. The hourlong special will go behind the scenes and give viewers an inside look at the incredible teamwork it takes to put this enormous television event together. From casting to dress rehearsals, from costume designs to learning to fly, from watching the actors hit their marks to sword fighting, this is an all-access pass to whet viewers' appetites for all things "Peter Pan Live!"

For the December 4 telecast of PETER PAN LIVE!, "Girls" star Allison Williams will play the title role in "Peter Pan Live!" while Oscar winner and Emmy and Tony nominee Christopher Walken will star as the villainous Captain Hook. Christian Borle will play both Smee, the dastardly right-hand to Captain Hook, as well as George Darling, the no-nonsense father of the Darling children. Five-time Tony Award nominee Kelli O'Hara co-stars as Mrs. Darling. Minnie Driver just joined the cast as the narrator and grown-up Wendy Darling.

"Peter Pan Live!" will be executive produced by Craig Zadan and Neil Meron.