According to wikipedia, Plumíferos “is a 2010 Argentine computer-animated film made by Manos Digitales Animation Studio using Open Source software for all 3D models, animation, lighting and render process, under Linux operating system.”
It’s taken years to get to the screens with parts shown as early as 2005.
Some further bits to share-
And very interesting to see the voice actors in this film.
Doesn’t seem to be available on Amazon or iTunes yet though…. 🙁