Kristen Stewart [1] popped up at the Sundance Film Festival over the weekend in Park City, UT. On Sunday, she made a casual, smiley appearance at the red carpet premiere of Certain Women, her new movie with costars Michelle Williams [2] and Laura Dern. The actress has been all over the place in the first few weeks of the year. She's been spotted on an outing with Nicholas Hoult [3], plus kicking off award season with a gorgeous gala in NYC [4]. She also attended the New York Film Critics Circle Awards [5], where she accepted an award for her acting in Clouds of Sils Maria. Keep reading to see more of her pics!