Sienna Miller is a British-American actress and fashion icon, born on December 28, 1981, in New York City. She gained fame in the early 2000s for her roles in films like Layer Cake and Alfie. Miller is known for her versatile acting skills and has appeared in various genres, including drama, comedy, and action. In addition to her acting career, Sienna Miller is recognized for her influence in the fashion industry. She has been featured in numerous magazines and has collaborated with several designers. Miller's style often blends bohemian and chic elements, making her a prominent figure in contemporary fashion.