Entertainment Weekly reports on a rumor that Scarlett Johansson is in discussions with Marvel Studios to replace Emily Blunt in the upcoming Iron Man sequel.

She would take on the role of Russian superspy Natasha Romanoff, also known as Black Widow. Blunt, who was initially attached, may not star due to her commitment to 20th Century Fox’s Gulliver’s Travels.

The site’s sources say Johansson has already met with the filmmakers and is interested in the role, though it all depends on Blunt’s schedule as her agents are trying to get both films into her itinerary.