Kristen Stewart stuck with her casual t-shirt and jeans for today's Welcome to the Rileys premiere at Sundance. She was fresh off a morning of photos with her The Runaways costar Dakota Fanning, who came along to support Kristen's other venture at the festival. Stewart revealed that the pole dancing scenes for the movie left her a bit bruised, but determined while shooting — ouch. We'll be chatting with her tomorrow so be sure to leave any questions in the comments! She has a busy night ahead of her celebrating one project before her portrayal of Joan Jett makes its debut tomorrow.