Blender Foundation: Big Buck Bunny (3D Animation)

Blender Foundation is a non-profit organisation responsible for the development of Blender, an open-source program for three-dimensional modelling. Chaired by Ton Roosendaal, the software’s original author, Blender is funded by donations that make it possible to develop and distribute the software and organise related activities. The Foundation’s main goal is to give the Internet community access to 3D technology.
Blender allows free access to a professional software in a sector in which similar programs cost thousands of euros. Due to its excellent features, it has been enthusiastically received by the industry (it was used in productions like Spiderman 2). The first-ever feature film made exclusively with open source software is currently under production, with Blender as its main tool. It is called “Plumíferos”, and is boosting the development of Blender even further, especially at the level of animation and the management of libraries on a large scale. Plumíferos is expected to be released in late 2008.
http://www.blender.org/