Sienna Rose Miller (born December 28, 1981) is an American born English actress, model, and fashion designer, best known for her roles in Layer Cake, Alfie, Factory Girl, The Edge of Love and G.I. Joe: The Rise of Cobra. In 2007, the London Film Critics named her British Actress of the Year for Interview. In 2006, she designed a fashion capsule for Pepe Jeans.