This is a movie made and released for free under the creative commons license. Made with free software [Blender] by regular (very talented) people.
It's about 60% of the way there in comparison to a Pixar movie. No words, slightly simplified graphics, slightly amateurish acting. But I'm splitting hairs, it's great.
Here is the project Blog: http://www.bigbuckbunny.org/
Ties right in with Clay Shirky's Cognitive Surplus speech: [linky]