Tony Stark has gained one redhead and lost another. While Jessica Chastain is in talks to join Iron Man 3, Scarlett Johansson rebutted rumors that she'd be coming back again, telling Screen Rant that she won't make a return appearance as Black Widow, who was introduced in Iron Man 2. That said, she's hopeful that after seeing The Avengers, audiences will clamor for a Bourne-like Black Widow spinoff, even if Johansson will have to make some sacrifices for it. "Do I want to spend another three months shedding the manatee skin and squeezing back into that suit?" she laughed. "Not necessarily, but it's all worth it in the end."