Iron Man 2 is a 2010 American superhero film based on the Marvel Comics character Iron Man. It is the sequel to 2008's Iron Man, and is the third film released as part of the Marvel Cinematic Universe. Directed by Jon Favreau and written by Justin Theroux, the film stars Robert Downey, Jr., Gwyneth Paltrow, Don Cheadle, Scarlett Johansson, Sam Rockwell, Mickey Rourke, and Samuel L. Jackson. Set six months after the events of Iron Man, Tony Stark has revealed his identity as Iron Man and is resisting calls by the United States government to hand over the technology. Meanwhile, rogue Russian scientist Ivan Vanko has developed the same technology and built weapons of his own in order to pursue a vendetta against the Stark family, in the process joining forces with Stark's business rival, Justin Hammer.