Tropic Thunder is a 2008 action comedy film directed by Ben Stiller. Robert Downey Jr. plays the role of Kirk Lazarus, an Australian method actor who undergoes a controversial skin pigmentation procedure to portray a black character in a war film. The movie is a satirical take on Hollywood and the film industry, with Downey Jr.'s performance as Lazarus being a standout. Tropic Thunder received critical acclaim for its humor and performances, including Downey Jr.'s transformative role.