Is Emily Blunt up for Black Widow in Iron Man 2?

With Mickey Rourke and Sam Rockwell negotiating to play key villains in Iron Man 2, Marvel Entertainment and director Jon Favreau are now looking for the right actress to play the femme fatale Black Widow, another nemesis for Robert Downey Jr.'s Tony Stark, Variety reported.

Emily Blunt has emerged as the front-runner to play Natasha Romanoff in the Iron Man sequel, the trade paper reported. She's a Soviet superspy who doubles as Black Widow, a beauty in a skintight black costume enhanced by high-tech weaponry.

Blunt, whose credits include The Devil Wears Prada, will get a profile boost when she stars with Benicio Del Toro in the Joe Johnston-directed The Wolfman for Universal.

Marvel would not comment to Variety on the Black Widow casting. The Justin Theroux-scripted Iron Man 2 will begin production in the spring for release by Paramount in summer 2010.

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