Banksy, the secretive British artist whose work has appeared on city streets around the world, said on Sunday he hoped his documentary film Exit Through the Gift Shop will raise the standing of urban art.

Exit Through the Gift Shop contains exclusive footage of Banksy, Shephard Fairey, Invader and many of the world’s most infamous graffiti artists at work.

The Double Yellow Lines graffiti work can be seen on London’s Pollard Street.