The bridesmaid finally becomes the bride.

After weeks of being the runner-up on the Best Dressed of the Week polls, Diane Kruger finally wins wearing a stunning red Marchesa one-shoulder mini dress.

Any other week I would have picked Diane as well, but Sienna’s run was so impressive promoting “G.I. Joe: The Rise of Cobra” she couldn’t be over looked.

Her gorgeous shimmering YSL gown was very much the cherry on her sundae of many wow moments this week.

Drew Barrymore and Zoe Saldana have both had outstanding promotional tours this year, but Sienna has outshone them in my opinion.

I can’t see anyone out doing Sienna’s efforts this year. But then I thought the same for Drew and Zoe.

Credit: Wireimage