You know the drill: A group of playwrights convenes at night, with eight hours for each of them to write a sketch. In the morning, these playlets are cast and the directors and actors have eight hours to rehearse. That night, the piping-hot plays debut for a paying audience. Confusion, missed cues and cracking up ensue. The acting talent includes Greta Gerwig, Jason Biggs, Natalie Dormer, Zosia Mamet, Tracie Thoms and Anthony Mackie.