Essentially, this is "Spinal Tap" in folk music. The son of a beloved folk music producer has only two weeks to organize a major event showcasing the reunions of three then-popular 60's folk groups.

Rather bland through the first third, the second third picks up only a little bit, but that third third is sweet.

Kudos to Ed Begley Jr. and Fred Willard (also very funny in "Best of Show"), but Eugene Levy (who almost always gets my sides aching) is strikingly unfunny here. That said, he as well as other cast members do a great job with the music -- both performing and writing.