I was just at BLU's website to see if they had anything new up. They didn't. But I noticed something I hadn't before - they've made MUTO available under a Creative Commons license. Awesome!
MUTO - An ambiguous Animation painted on public walls is a graffiti stop-motion short film made on the streets of Buenos Aires and Baden last year.
It's available as avi or ogg files here.
Once on the website, check out the drawings and walls sections for a very impressive archieve.
www.blublu.org