If you haven't seen this documentary and you're a fan of anything uncommissioned, see it NOW. Whether or not you're a fan of Banksy, this film deserves the two hours or whatever it takes. Have Netflix? They have it on instant watch, so now you HAVE to see it.
For those who have seen it: Supposedly Mr. Brainwash may or may not be an actual creation of Banksy himself. Personally I kind of disbelieve the idea of someone recording every moment of their life, but I guess crazier things have happened.
Either way, there's tons of street art history and information packed into this movie, along with a really compelling story running throughout. See it and love it.