Documentary directed by the elusive street artist Banksy. Using footage shot by eccentric French amateur film-maker Thierry Guetta, the film follows the shop owner as he immerses himself in the underground world of guerilla street art. He joins the scene through his cousin, mosaic artist Invader, and documents camera-shy artists including Shepard Fairey and Banksy at work. But as Thierry films them for his art documentary, Banksy turns the camera back on its holder and shows how Guetta created the pop-street art alter ego known as 'Mr Brainwash' and became an overnight sensation in the LA art world.