The stunning actress plays Natasha Romanoff and her alter-ego Black Widow in the action movie - which features a huge ensemble of Marvel Comics superheroes - and she has already impressed her co-star Clark Gregg with her amazing physique.
Clark - who plays Agent Phil Coulson - said: "I don`t know why, but anytime you say `bod`, I just have to say it`s got to be ScarlettJohansson. That`s a superhero bod. It`s a super bod, it`s a superhero bod. Agent Romanoff is the last person you want to mess with."
As well as Scarlett`s stunning body, Clark has also been impressed with Lou Ferrigno, who provides the voice of The Incredible Hulk.
He told Collider.com: "If there is a close second it has to be The Hulk. If The Hulk was mad at me, or Agent Coulson, there are a number of people I would think of calling, but I would definitely call Agent Romanoff first."
While male fans will be excited at the prospect of seeing Scarlet`s amazing body - which she first showed off in Black Widow`s skintight costume in `Iron Man 2` - in the film, Clark insists cinemagoers everywhere are in for a treat when the movie is released next year.
He said: " There`s almost nothing I can say, except that it`s the funnest ensemble movie in the history of the planet, and that (director) Joss Whedon is God."