Scarlett Johansson has always oozed sex appeal, but when she got in shape for her role as the Black Widow in Iron Man 2, donned a sleek unitard and executed a lot of her own stunts, she left her director and co-stars even more in awe of her than they already were.

"I saw the costume when we were doing wardrobe tests, and I was just like, 'Oh my god, this is just not fair,'" Robert Downey Jr. said about her skin-tight sexy unitard costume.

"I think Black Widow's gonna bring, like, tongues hanging, drooling toward her," Samuel L. Jackson told ET. "Plus, she's kicking so much ass."

Even her director, Jon Favreau, couldn't stop his glowing review of her stunt-work and dedication to the film.

But one co-star who was noticeably absent from the video (which shows some shots of Scar Jo kicking butt in the film) was Gwyneth Paltrow, who, rumor has it, had some tension with Scarlett due to her obvious attention-getting presence on the set.

Are you surprised?