Some of you may have come across this one already come across this one. For those that haven't, "Sintel" is a short CGI film made using free software.

Quote:
The plot follows the girl Sintel as she goes on a quest around the world to find a baby dragon, which she had nurtured back to health, after it was taken away by a bigger dragon.

It's released under a free license so it's available to watch on YouTube here. Total running time is 14:48.

The official site if you want to know more about the project can be found at http://www.sintel.org/