PHOTO GALLERY: Kristen Stewart Shows Off Her Studio Scowl

Prior to engaging in a scandalous evening of clubbing with her 15-year-old co-star Dakota Fanning on Tuesday, Kristen Stewart was spotted at a studio in North Hollywood, California, where she’s preparing for her upcoming role as Joan Jett in the upcoming biopic The Runaways.

From the vaguely evil expression on her face, it certainly looked like she was preparing for an evening of corrupting a minor.

Check out our gallery of photos and have your say in the comments section: Why do you think K-Stew looked so grumpy on Tuesday?