LONDON, ENGLAND - SEPTEMBER 21:  Sienna Miller apears backstage after her sister Savannah's show Twenty8Twelve during London Fashion Week Spring/Summer 2010 on September 21, 2009 in London, England. Getty Images logo Getty Images 29 months ago

LONDON, ENGLAND - SEPTEMBER 21: Sienna Miller apears backstage after her sister Savannah's show Twenty8Twelve during London Fashion Week Spring/Summer 2010 on September 21, 2009 in London, England.