Everyone should see this film. Well worth watching even in peices. It talks about remix culture, the history of copyright and the movement to reform copyright, Creative Commons, and it has a fantastic soundtrack.
Also features interviews with one of my heros, Cory Doctorow, founder of Boingboing.net and author of Makers, one of the best fricken books ever. And you can read it for free in a number of formats thanks to the CC License it was published under.
PS Nirvana+bigbeat=awesome. I really never thought I would say that.