Kristen Stewart looked like a real-life angel on Sunday when she attended a screening of her movie Clouds of Sils Maria on Sunday in New York City. This isn't the first time Kristen has made a stunning red carpet appearance in support of this film, but by accessorizing her head-to-toe white ensemble with a carefree smile, it just might be her best yet. The perpetually fierce actress has earned more than just rave reviews for her tour-de-force performance as Valentine in the movie. She took home a César Award (the French equivalent of an Oscar) for best supporting actress in the film, making her the first American actress to do so. Check out the photos here, then read Kristen's sweet message of support to Star Wars actress Daisy Ridley!