Sienna Rose Miller was born on 28th December 1981 and is an English actress, model, and fashion designer. She is best known as an actress in her roles in Layer Cake, Alfie and Factory Girl.
She was born in New York City though and moved to the UK with her family when she was just over a year old.
Sienna started her career as a photographic model. She signed for Select Model Management and modelled for Coca-Cola, Italian Vogue, and posed topless in the 2003 Pirelli Calendar.
Her resemblance to Kate Moss have been well noted especially as she has been closely associated with the boho chic style of fashion - a style Moss has made her own.
She later signed a two-year contract with Pepe Jeans and recently was appointed ambassador for the Hugo Boss Orange women’s perfume.
Sienna's acting career did not take long to be noticed - she performed in several amateur New York City plays and in 2001 made her film début with Rupert Everett and Elle Macpherson.
She won a lead role in the remake of Alfie starring Jude Law in 2004 and in the same year she made Layer Cake with Daniel Craig.
Sienna is the Global Ambassador for International Medical Corps and in 2009 went to the DR Congo and Haiti after the 2010 earthquake.
Her personal life has been the subject of lots of media speculation - she became engaged to Jude Law on Christmas Day 2004 before he was reported to have had an affair with the nanny of his children in summer 2005. This led to their separation the following November.
After brief relationships with Matthew Rhys, Rhys Ifans and father of four Balthazar Getty, Sienna began dating Law again in 2009. They made a public appearance together at the 2010 Costume Institute's Benefit Gala.