It’s official – Scarlett Johansson and Mickey Rourke have been cast in Iron Man 2, opposite Robert Downey Jr. As previously rumored, Scarlett Johansson will take on the role of Black Widow, while Mickey Rourke has been cast as Russian villain Whiplash.

Iron Man 2 is scheduled for a May 2010 release, and will co-star Gwyneth Paltrow as Pepper Potts, Samuel L. Jackson as Nick Fury and Don Cheadle as Col. James “Rhodey” Rhodes.