After a few teasers for Peter Pan Live! [1] that just gave us tiny peeks at Allison Williams and Christopher Walken [2], a full trailer with tons of action has been released. There's a lot more singing, more looks at the extravagant set, and maybe a little bit of magic. Great news: as suspected, Williams is a lot better at singing than Marnie, though we still think Girls totally prepared her for the role [3]. Take a look at the brand-new trailer, below, and stay tuned for more footage and pictures leading up to the Dec. 4 live show on NBC.