Elephants Dream
Here's a very good release if you're interested in 3D animation, and it's free to download as well. "This is the final stage of a successfully completed Open Movie project which has been community-financed, using only Open Source tools, and opening up the movie itself as well as the entire studio database for everyone to re-use and learn from. The movie and production files are licensed as Creative Commons Attribution 2.5, which only requires a proper crediting for public screening, re-using and distribution." http://www.elephantsdream.org/ Enjoy