I've just watched a movie that is my strong favorite of all those I've seen this year, and which has earned a place in my lifetime top ten. It's animated, it's only fifteen minutes long (of which two are credits) and it's free. It's called Sintel, and you should stop what you're doing and go watch it right now. (While you can see the whole thing on YouTube, it is well worth the download of one of the full-res versions. If you must go the YouTube route, at the very least choose one of the higher resolutions.)
More spoiler-free images and discussions after the jump.