Robert Downey, Jr. made his film debut at five years old in his father’s 1970 film Pound. He has been working consistently ever since. He gained attention for a series of coming-of-age films in the '80s, then won acclaim playing the title role in 1992's Chaplin. In the '90s, he gained notoriety for his off-screen problems involving drugs and alcohol. His luck and life changed when he landed the role of Marvel’s Iron Man.