Robert Downey Jr. fully embraced method acting for his role as Kirk Lazarus in the satirical movie 'Tropic Thunder.' In the film, Downey Jr.'s character, an Australian actor, takes method acting to extreme lengths by surgically darkening his skin to portray an African-American character. This decision to wear blackface has since faced criticism due to its racist connotations.
According to his co-star, Downey Jr. remained in character even off-camera, going as far as using the character's persona while taking a bathroom break. His dedication to the role extended to creating a song about going to the restroom in character, showcasing his commitment to the part.
