BloodSpell - For Openness' Sake
Another film released under a Creative Commons licence - but this one with a twist. It's made using the Machinima framework - a kind of virtual world production. It's dead clunky now (think old videogames), but it's not hard to see where this is going: completely realistic virtual worlds that unfold according to scripts with actors capable of independent action, all filmed with free camerawork. Hollywood won't know what hits it.
All it needs now is a fully open-source platform. Unless one already exists - my ignorance of this fascinating world is such that it might well do, but I couldn't find one. (Via OpenBusiness.)