Spurlock reveals films number 30 through 21 as he kicks off this leg of his journey with Michael Moore, who talks about what drove him to make the box office hit "Fahrenheit 9/11." In Los Angeles, he finally meets up with mercurial Mr. Brainwash from Banksy's hit film "Exit Through the Gift Shop" (2010) all in an effort to find out whether he is real or an elaborate art hoax.