Iron Man is an American science fiction superhero movie based on the Marvel Comics character Iron Man. It is part of the Marvel Cinematic Universe group of movies. It was released in different countries on dates between April 30, 2008 and May 2, 2008. The movie is about Tony Stark (played by Robert Downey Jr.), a billionaire industrialist who is captured by terrorists in Afghanistan. The movie received very good reviews, and as of May 5 holds a 94% positive rating on Rotten Tomatoes. It was the number one movie in the United States in its opening weekend.