Revolution OS is a very interesting documentary about GNU, GNU/Linux, Open Source, and the (FSF) Free Software Movement. It tells the story of the prominent hackers who rebelled against the proprietary software model and Microsoft to create GNU/Linux and the Open Source movement. This films contains interviews with Linus Torvalds, Richard Stallman, Bruce Perens, Eric Raymond and others who discuss the importance of free software, and how their ideas led to the GNU project and eventually GNU/Linux. Entertaining in a geeky sort of way.

Checkout the trailer: