We spotted both Kate Mara and her sister Rooney Mara at the premiere for The Girl With The Dragon Tattoo. Rooney stars in the movies as Lisbeth Salader alongside Daniel Craig. Both girls looked great but have such different styles. Kate wore a sweet pink Christian Dior dress that really showed off her girly side, while Rooney went for a dark and dramatic Prabal Gurung with cutouts. Which sister looked best: Kate or Rooney?