Back in March, Scarlett Johansson signed on to play Natasha Romanoff a.k.a Black Widow in “Iron Man 2”, after a scheduling conflict forced Emily Blunt to drop out of the part. The film, slated for a May 2010 release is directed by Jon Favreau and also stars Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Mickey Rourke, Samuel L. Jackson and Sam Rockwell.

In a recent interview, the actress talked a bit about the physical aspects of filming Iron Man 2:

“It was a whole new world for me, but I built a lot of strength, that’s for sure.

“Working on the wires and being suspended in the air, you throw one wrong kick or punch and, yeah, you’re out of whack.

“But once you’re working with the stunt crew and they’re going through the craziest stuff, you feel bad about complaining that your knee has been blue for three months.

“The guys doing the stunts in those Iron Man suits, they can’t move in it and can’t take it off. I’d say, ‘Have you peed today?’ and they’re like, ‘No, we can’t move, we can’t take it off, we can’t drink any water.'”

She added;

“Working on the film was a total dream come true, I was such a fan of the first movie. It’s just super action packed, and I’m so geeked out about it. Jon Favreau, the director, is also super geeked out about it, so we’re in it together.”