Sienna Rosie Diana Miller (born December 28, 1981) is an American-born English actress. Born in New York City and raised in London, she began her career as a photography model, appearing in the pages of Italian Vogue and for the 2003 Pirelli calendar. Her acting breakthrough came in the 2004 films Layer Cake and Alfie. She subsequently portrayed socialite Edie Sedgwick in Factory Girl (2006) and author Caitlin Macnamara in The Edge of Love (2008), and was nominated for the 2008 BAFTA Rising Star Award. Her role as The Baroness in G.I. Joe: The Rise of Cobra (2009) was followed by a brief sabbatical from the screen amid increased tabloid scrutiny. Miller returned to prominence with her role as actress Tippi Hedren in the television film The Girl (2012), for which she was nominated for the BAFTA Television Award for Best Actress and the Golden Globe Award for Best Actress – Miniseries or Television Film. Further critical acclaim followed throughout the 2010s, with appearances in the films Foxcatcher (2014), American Sniper (2014), Mississippi Grind (2015), The Lost City of Z (2016), Live by Night (2016), and American Woman (2018), as well as the miniseries The Loudest Voice (2019). Early life Miller was born in New York City, and moved to London with her family when she was 18 months old. She later boarded at all-girls Heathfield School in Ascot, Berkshire. Her mother, Josephine, is a British former model who was born in South Africa to British parents and was a personal assistant to David Bowie and one-time manager of the Lee Strasberg Theatre and Film Institute in NYC. Acting career Early acting credits, 2001–2003 Miller's screen debut came in the romantic comedy South Kensington (2001), opposite Rupert Everett and Elle Macpherson. In 2002, she had supporting roles in High Speed and its follow-up The Ride, and guest-starred in The American Embassy and Bedtime. She had a regular role as the combative yet caring flatmate of an NYPD detective in the television drama series Keen Eddie (2003). Although FOX canceled it after only seven episodes, it was Miller's first exposure to American audiences. Breakthrough and tabloid notoriety, 2004–2008 With roles in two commercial films and a higher public profile due to her relationship with actor Jude Law, 2004 was a turning point for Miller's career. The crime thriller Layer Cake, directed by Matthew Vaughn and starring Daniel Craig, featured her as