
Acting career Early acting credits, 2001–2003 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. Her father, Edwin Miller, is an American dealer in Chinese art, previously a banker.

She later boarded at all-girls Heathfield School in Ascot, Berkshire. Miller was born in New York City, and moved to London with her family when she was 18 months old. 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). 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. Joe: The Rise of Cobra (2009) was followed by a brief sabbatical from the screen amid increased tabloid scrutiny. 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 acting breakthrough came in the 2004 films Layer Cake and Alfie.

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. Sienna Rosie Diana Miller (born Decem) is an American-born British actress.
