The much anticipated 'Iron Man 2' sequel is in production and ET is with the newest actress to the series, Scarlett Johansson, who talks about being the fresh face to the male-dominated film.

Produced by Jon Favreau and starring Robert Downey, Jr., Johansson joined the 'Iron Man 2' crew to play the comic book character Black Widow, also known as Natasha Romanoff.

"You're dealing with some sensitive men here," the actress tells Mark Steines of the cast and crew. "I mean as much as they're guys'-guys, I think Jon is a big softy and Robert certainly embraces his theatrical side."

"It was, yes at times, a little bit of a boys' club but I think I imbued enough femininity to quiet them down a little," the new action star says.

Watch the video to hear about Johansson's stunt work on the film and she reveals what husband Ryan Reynolds thinks of her Black Widow costume.