Sienna Rose Miller (born December 28, 1981) is an English[1] actress, model, and fashion designer, best known for her roles in Alfie, Factory Girl, and Edge of Reason, now soon to star in G.I. Joe: Rise of Cobra.
Miller was born in New York City on 28 December 1981 and moved with her family to London, England when she was a year old. She attended Heathfield St Mary's School, a boarding school in Ascot, Berkshire and later studied for a year at the Lee Strasberg Institute in New York City with luminaries such as Will Lee, Marc Griffin and Konima Summer, with whom she has remained close friends.
Her father Edward Miller is an American banker turned Chinese art dealer. Her South African mother, Josephine "Jo" Miller, ran Lee Strasberg's acting academy in London[2] and was once David Bowie's secretary.
Her parents parted when she was six years old, and her father subsequently married the English interior designer Kelly Hoppen; they divorced after 15 years.[3]
Miller has a sister, Savannah, a fashion designer; two half-brothers, Charles and Stephen, and a former stepsister, Natasha Corrett (the daughter of Hoppen).