I just wrapped the first season of Unsung Heroes at The Film Experience with this post about the brilliantly craft of the documentary Exit Through the Gift Shop. Check it out and while you're at it click on the "Unsung Heroes" tag to catch any of the past episodes in the series you may have missed.
Oh, and see Exit Through the Gift Shop. It's easily one of the most entertaining movies of 2010 and it's endlessly fascinating. I haven't been able to stop thinking over it since I saw it, and the fact that it may be in some way (or in a lot of ways) a hoax only serves to make it better. It makes sense if you see it.