Last Night's Look: Hit or Miss?

Vote on this week's styles including Gwen Stefani, Charlize Theron and more stars! You decide – are they fashionistas or flops?

  • SIENNA MILLER photo | Sienna Miller

Credit: B. Ach/INF

Updated: Saturday Oct 24, 2009 | 06:00 AM EDT

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SIENNA MILLER

She was applauded for her onstage good looks, and offstage Sienna continues to shine in a metallic cut-out minidress at the opening-night party for her Broadway play After Miss Julie.