With Mickey Rourke and Sam Rockwell negotiating to play two key villains in "Iron Man 2," Marvel Entertainment and director Jon Favreau are now focusing on casting another nemesis for Robert Downey Jr.'s Tony Stark: the femme fatale Black Widow.
Emily Blunt has emerged as the frontrunner to play the role of Natasha Romanoff in the "Iron Man" sequel. She's a Soviet super spy who doubles as Black Widow, a beauty in a skintight black costume that is enhanced by high-tech weaponry.
Blunt, whose recent credits include "The Devil Wears Prada," "The Jane Austen Book Club" and "Charlie Wilson's War," will get a profile boost when she stars with Benicio Del Toro in the Joe Johnston-directed "The Wolf Man" for Universal.
Marvel would not comment on the Black Widow casting. The Justin Theroux-scripted "Iron Man 2" will begin production this spring for release by Paramount in summer 2010.