Eva Mendes plays Sand Saref in The Spirit.

The actress bares her bum in the adaptation of Will Eisner’s 1940s comic book The Spirit.

Eva admitted stripping for her role as cat burglar Sand Saref made her nervous.

She said: “I’m excited to see what happens with this scene. Well, I don’t think it’s ‘excited’ – I’m actually nervous.

“I think they have a butt shot of me. I’m not sure how it ended up.”

“The movie looks spectacular.

I play a jewel thief who’s been married 15 times and has killed each and every one of her husbands. When do you get to play that?”

Eva’s nude scene follows her controversial raunchy ad for Calvin Klein’s Secret Obsession perfume. It featured her rolling around semi-naked in bed and was banned in the US.