No ifs, ands or buts about it - Scarlett Johansson is one of the most gorgeous women on the planet. But while Scarlett certainly embraces her curves, she definitely had no qualms about whipping them into tip-top shape for her role in Iron Man 2.

        "I kicked some major butt," the actress, 24, told PEOPLE at Comic-Con of her training regimen to make her a shapely superhero ready for acrobatic battle scenes. "It was many, many, hours, days, and months of stunt training and strength training, but it's fun because I had a goal. The goal was the Lycra catsuit."

According to Iron Man 2's director Jon Favreau, she stuck to a low-carb diet and really watched what she ate.

All in all, admiration was more his stance: "I think people are going to be very impressed when they see her. It's totally different than anything you've seen her do before," he said of Scarlett's stunt work for the film.

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