According to deadlinehollywooddaily.com Mickey Rourke,Scarlett Johansson joined the cast of Iron Man 2.Mickey Rourke will play the Russian villain in the film,who is "Tony Stark's Russian alter ego, a heavily tattooed bruiser who is in the arms trade and battles Iron Man in his own nuclear-powered armored suit."
Scarlett Johansson replaces Emily Blunt as the Black Widow and she has signed a contract,which "ties her to countless movies" ... including The Avengers in 2011.The possibility of Mickey Rourke's involvement in Spiderman 4 is also mentioned.
Iron Man 2 will hit theaters on May 7, 2010.