Sienna Miller,Tara Summers in Factory Girl (2006)
A beautiful, wealthy young party girl drops out of Radcliffe in 1965 and heads to New York to become Holly Golightly. When she meets a hungry young artist named Andy Warhol, he promises to make her the star she always wanted to be. And like a super nova she explodes on the New York scene only to find herself slowly lose grip on reality...