The film was really excellent, and sheds light on a significant little bit of Californian, and more broadly American, history which has apparently not been remembered in the history books (rather self-referrentially, the film says the same thing about a much earlier bit of US history).
It was made possible by HBO (which I don't have, but if I did I'd certainly record and/or watch the film again), and will be shown this Saturday, 2006.03.18. The HBO site (see below) has more information on showtimes and the like.
I strongly recommend that all of you that subscribe to HBO watch this movie!
Further information: http://www.hbo.com/events/walkout/