Scarlett Johansson rumoured for Iron Man 2 Scarlett Johansson is in talks to replace Emily Blunt for the role of Russian superspy Natasha Romanoff, who doubles as Black Widow, in Iron Man 2. Blunt’s commitment to the upcoming Gulliver’s Travels may prohibit her from co-starring in the superhero sequel. Marvel will not confirm, but Entertainment Weekly reports that Johansson has indeed met with the filmmakers and is interested in taking the role. Blunt’s reps are still trying to make both projects work, but “Gulliver’s” is further along, with a start date of April 15. Iron Man 2 still doesn’t have a shooting script and a start date has not yet been determined. Johansson is no stranger to comic book movies having previously appeared in The Spirit, in which she starred opposite Samuel L. Jackson, who was also supposed to appear in Iron Man 2 until his contract negotiations broke down.