Exit Through the Gift Shop recommended by W+A. I really liked it, especially because I used to be into the street art scene when I was in highschool. Was always a big fan of Banksy but nobody in my circle of friends respected Mr. Brainwash.
I actually had some friends in the mid 90s that were really talented. I went out with them a couple of nights to take pictures. Long Beach, Compton and parts of LA are really strange places to be at 3am. I wouldn’t recommend it.