love me some documentaries

...and geekchick enlightened me to the existence of a whole bunch of 'em, free. Favorite pick so far: a 1977 UK documentary about the almost-unheard-of-in-the-US youth subculture northern soul. The accents are almost impenetrable and the dancing wildly athletic (opens YouTubey type video). Given how little I know about this flamboyant movement this coverage warms the cockles of my wannabe pop cultural historian heart :)