Sienna Miller and sister Savannah seen leaving with fashion designer Matthew Williamson, spotted holding a drink in his hand, as the trio leave his new store opening party in London. As the three get into the back of a car, something on Sienna's phone causes all three to laugh.
( - Photo by PacificCoastNews.com)see more angles »
( - Photo by PacificCoastNews.com)see more angles »





