Celebrity sisters Sienna and Savannah Miller pose for their portrait at the launch of their fashion label's latest collection: Twenty8Twelve. London F Stock Photo - Alamy

$ 15.50 · 4.7 (289) · In stock

British actress/designer Sienna Miller and designer Savannah Miller attend Twenty8Twelve Spring/Summer catwalk show at Fashion Week in London on September 18, 2010. UPI/Rune Hellestad Stock Photo - Alamy

Savannah miller hi-res stock photography and images - Alamy

Actress Sienna Miller and fashion designer Matthew Williamson arrive at Somerset House for the opening night of a Matthew Williamson exhibition celebrating the October launch of a book dedicated to the of

Actress Sienna Miller and fashion designer Matthew Williamson arrive at Somerset House for the opening night of a Matthew Williamson exhibition celebrating the October launch of a book dedicated to the of

British actress/designer Sienna Miller and designer Savannah

Sienna Miller: Twenty8Twelve at London Fashion Week!: Photo 2239912, Savannah Miller, Sienna Miller Photos

Savannah miller hi-res stock photography and images - Alamy

Sienna and savannah miller hi-res stock photography and images - Alamy

Actress Sienna Miller and fashion designer Matthew Williamson arrive at Somerset House for the opening night of a Matthew Williamson exhibition celebrating the October launch of a book dedicated to the of

Sienna Miller: Twenty8Twelve at London Fashion Week!: Photo 2239912, Savannah Miller, Sienna Miller Photos

Miller sisters hi-res stock photography and images - Alamy

Celebrity sisters Sienna and Savannah Miller pose for their portrait at the launch of their fashion label's latest collection: Twenty8Twelve. London F Stock Photo - Alamy