Exit Through the Gift Shop

Banksy's 2010 exploration of street art and the art market -- whether documentary or elaborate hoax -- became the highest-grossing street art documentary ever made and earned an Academy Award nomination. By placing the hapless Thierry Guetta ("Mr. Brainwash") at its centre, the film simultaneously celebrates and savagely satirises the mechanisms by which the art world assigns value, asking questions about authenticity that remain unresolved and deliberately so.