The 29-year-old Scottish actress plays Ruby Roundhouse in the movie, alongside DWAYNE 'THE ROCK' JOHNSON, Kevin Hart, Jack Black, and Nick Jonas.

A still from the film, which was released last year (16), featured Karen wearing a cropped shirt with leather straps, low-cut shorts and lace-up knee-high hiking boots. Fans were keen to point out the male stars of the movie were not dressed in revealing outfits, prompting many feminists to call the photo - and Karen's outfit - sexist.

Now, the Guardians of the Galaxy star is speaking out about the criticism, insisting she would never take on a role that involved her being nothing but the sexy pin-up: "I'd never take on a role that was truly gratuitous for no reason," she told The Hollywood Reporter. "There's a really valid reason why she's wearing that. My character is really not happy about it!"

Karen recalled she experienced "something similar" when working on cult sci-fi series Doctor Who, describing how many fans of the show felt her character, Amy Pond, was portrayed in a sexist way.

"I just don't understand that. I feel like I had a very rounded, interesting, flawed and layered character to play," she said at the Dallas Sci-Fi Expo back in 2014. "I wore skirts but (Doctor Who writer) Steven Moffat had nothing to do with that. He doesn't care about costumes. So I don't really understand (the criticism) if I've got to be honest."

Jumanji, a reboot of the hit 1995 film starring the late Robin Williams, is set for release in December (17).