Celeb Fashion Hit or Miss?

Check out style triumphs and trip-ups by the stars – then rate the looks yourself!

  • SIENNA MILLER photo | Sienna Miller

Credit: Fernando Allende / Splash News

Updated: Thursday Feb 01, 2007 | 06:00 AM EST

SIENNA MILLER

The Factory Girl star takes the plunge in a revealing vintage Ossie Clark gown at the Palm Springs Film Festival.