Though Emily Blunt was to play Black Widow in the upcoming Marvel sequel Iron Man 2, it looks like she might have to drop out due to her commitments to 20th Century Fox's Gulliver's Travels, which she will star in opposite Jack Black. According to Entertainment Weekly, Marvel is seeking to replace her with actress Scarlett Johansson.
At this time, Marvel is not commenting on the story. Sources close to the actress have confirmed that Johansson has met with filmmakers, and is very interested in taking on the role of Russian superspy turned Black Widow Natasha Romanoff. At this time, Blunt's representatives insist that she is trying to make both projects fit into her schedule. Gulliver's Travels is to start shooting on April 15th. Though, Iron Man 2 does not have a shooting script nor a set start date.
Iron Man 2 should be in theaters on May 7th, 2010. But that is subject to change.