Sienna and Savannah Miller
Sienna is an actress best known for her roles in Layer Cake and Factory Girl. Savannah is a Central St. Martins graduate and designer. The two joined forces in 2007 to create their line, Twenty8Twelve, but stepped down from the label in 2012. Savannah has previously worked for Alexander McQueen and is currently working on launching her own label, Savannah. They have two brothers, Charles and Stephen.