Yes, Elon Musk made a cameo appearance in the movie ‘Iron Man 2’. In the film, he portrayed himself and had a brief interaction with the character Tony Stark, who is played by Robert Downey Jr. Elon Musk’s cameo was a nod to his real-life involvement in the aerospace industry as the CEO of SpaceX and his association with electric vehicle company Tesla. It was a small but notable appearance in the movie.