Tropic Thunder is a 2008 action comedy film directed by Ben Stiller. Robert Downey Jr. delivers a standout performance as Kirk Lazarus, an Australian method actor who undergoes a controversial skin pigmentation procedure to portray an African-American character in a war film. The movie satirizes Hollywood and the film industry, with Downey Jr.'s character providing both comedic moments and thought-provoking commentary on race and identity. Tropic Thunder is a hilarious and cleverly written film that showcases Downey Jr.'s versatility as an actor.