Stewart, who plays a 16-year-old stripper in the film and practised for hours to perfect the art of dancing around a metal pole, said when she visited a real life club for research the owners offered her a job without realising she was a Hollywood star.
“I went to a strip club with the director and the costume designer and it being an odd grouping of people going into a strip club in the middle of the afternoon, I was, like, straight-up offered a job," the Daily Mail quoted her as saying.
Stewart, who is dating Twilight co-star Robert Pattinson, said she was left covered in bruises while rehearsing for her role. “I pole-danced for two weeks. I had bruises all over my legs… it hurts," she added.
Kristen plays a prostitute and underage stripper alongside James Gandolfini in the movie.