Jon Favreau is building himself a very impressive cast for ol Shellhead next cinematic adventure, Variety is reporting the rumor that Emily Blunt is in talks to play Natasha Romanoff in Iron Man 2. Romanoff is a Soviet super spy who doubles as Black Widow, a beauty in a skintight black costume that is enhanced by high-tech weaponry.She would join the previously-announced villains Mickey Rourke and Sam Rockwell in the sequel. Again directed by Jon Favreau, the Marvel Studios film sees the return of Robert Downey Jr. and Gwyneth Paltrow, while Don Cheadle is replacing Terrence Howard.
