Celeb Fashion Hit or Miss?

Vote on this week's styles including Jennifer Aniston, Eva Mendes and more stars! You decide – are they fashionistas or flops?

  • SIENNA MILLER photo | Sienna Miller

Credit: Jason LaVeris/FilmMagic

Updated: Friday Feb 27, 2009 | 11:30 AM EST

SIENNA MILLER

Before returning to London for her Twenty8Twelve fashion show, the star hit the red carpet in a strapless Emanuel Ungaro gown and Ferragamo clutch at the Montblanc Signature for Good Charity Gala in Los Angeles.