Scarlett Johansson‘s sexy Iron Man 2 catsuit was too “hot.”

The Hollywood beauty, who plays Natasha Romanoff and her alter-ego, Russian spy Black Widow, in the new superhero movie, had no qualms wearing the skin-tight outfit, but worried she would overheat while filming fight scenes.

“The first time I saw the suit I just thought, ‘That looks like it’s going to be really, really hot!’ Literally—the temperature was very hot,” she said of the costume.

Although Scarlett struggled with the stifling temperatures inside the black catsuit, the 24-year-old blonde star wants to reprise her role for another Marvel comic book adaptation: “the Black Widow has many different incarnations and different story lines so I’m hoping she will be able to continue in that way. I’m hoping that if the fans like the character and support the character, we’ll see her again.”

Scarlett’s husband Ryan Reynolds is already in talks to have his own superhero spin-off movie, based around his X-Men Origins: Wolverine character Deadpool.