Sienna Rose Miller is a BAFTA nominated American-born English actress, model, and fashion designer, best known for her roles in Alfie, Factory Girl, and The Edge of Love.She appears in two upcoming films: Hippie Hippie Shake a new Working Title production directed by Beeban Kidron also stars Cillian Murphy set in the 1960s, and a live-action film adaptation of the comic book and cartoon G.I. Joe. In September 2009 she will play the title role in Patrick Marber's After Miss Julie on Broadway. Miller was set to play Maid Marian in Ridley Scott's upcoming film Nottingham, featuring Russell Crowe as the Sheriff of Nottingham, but she dropped out before filming began.In 2009, Miller starred in the Comic Relief spoof of the film Mamma Mia! alongside English comediennes Dawn French and Jennifer Saunders, in which she played Sophie.