One great thing while in London was being able to watch BBC for real (not the sanitized version called BBC America). Among other things such as Alan Carr's Celebrity Ding Dong (Episode 1 p.1, 2, 3, 4) and live uncensored stand up comedy was a documentary about Factory Records called Factory: Manchester from Joy Division to Happy Mondays.

Link to Google Video. (I'm afraid this will probably disappear soon so catch it while you can)