Despite all the Stonehenge-y "spiritual" mumbo-jumbo, Glastonbury is a pretty good documentary on the history of England's oldest music festival. I'm currently looking for the Kaiser Chief's work, based on their performance of "Na Na Na Na Naa" in the film. I can't find it online, so you'll have to settle for the official video:
Good stuff. Fun Loving Criminals also had a good one. Good documentary,...