Savannah Miller
Savannah MillerWhile Sienna Miller is a Hollywood big name known for her career as a model and an actress, her sister Savannah has an equally successful career as a fashion designer and writer for British Vogue. The sisters even collaborated on a clothing line, Twenty8Twelve, which has become a global success known for its rocker meets '20s glamor looks. Savannah's first solo collection debuted this past October and focuses on '60s-inspired looks. [Photo via,via]