Legendary documentarian D.A. Pennebaker (Don't Look Back) and Chris Hegadus follow up their revealing, oft-hilarious look at Bill Clinton's campaign for president, 1993's The War Room, with this equally accomplished take on Carol Burnett's return to the footlights after a 30-year absence. Moon Over Broadway follows the troubled production of Ken Ludwig's Moon Over Buffalo, an ecstatic farce of double-takes, broad physical shtick, and dusted-off one-liners that looks dreadful from the first read-through. Nevertheless, the show must go on. Pennebaker and Hegadus slip into the harried backstage atmosphere, deftly tracking the mini-alliances and hostile infighting that develop among the cast and crew. Tom Wilson, the director, worries that Burnett's small-screen flamboyance won't play on the stage; Ludwig suffers through massive rewrites and back-biting from investors, only to be singled out in most of the bad reviews ("The worst bar mitzvah in the history of Temple Sinai!," he jokes); and veteran stage actor Philip Bosco (Bullets Over Broadway) attacks Wilson for not welcoming his creative input. In the middle of all this chaos, Burnett comes across as the consummate professional, carrying the play through an unexpectedly healthy nine-month run at the Martin Beck Theater. Moon Over Broadway may lack the social relevance of The War Room—or anyone with charisma approaching that of James Carville—but the similarities it draws between the two worlds are remarkable. If anything, staging theater has more to do with politics.