Blaine, Missouri is one of those little towns that had a UFO visit. You know: look beyond the quaint facades and average Joes and it's all weird America. But it doesn't get weirder than Corky St. Clair (Christopher Guest), a self-deluded theater director organizing the commemorative musical “Red, White and Blaine.” His hokey cast is more like cast-offs: Eugene Levy, a dullsville dentist; Parker Posey, lady-in-waiting from the Dairy Queen; Catherine O'Hara and Fred Willard, travel agents who won't get far. This spiffy spoof is Spinal Tap meets Samuel Beckett, a mockumentary where everyone's waiting for the punch line.