After studying her craft at the Lee Strasberg Institute, Miller honed her skills on the New York stage, eventually landing the lead female role on the Fox detective drama "Keen Eddie" (2002-03) opposite Mark Valley. But it was her performance as one of real-life lover Jude Law's countless romantic conquests in Alfie (2004) that put the actress on the map as the next "it girl" and attracted the attention of the international press.
Miller's growing resume also includes the notable films Factory Girl (2006), in which she portrays famed socialite and Andy Warhol associate Edie Sedgwick; and the big-budget fantasy film Stardust (2007).