For the LA premiere of Sherlock Holmes: A Game of Shadows, Rachel McAdams donned a silver metallic Marchesa gown with a plunging low back. We love the idea of making a simple silhouette fresh and modern by opting for one in a cool, textured print. A silvery, mixed-materials frock is a festive alternative to your go-to red party dress and is also perfect for watching the ball drop on New Year's Eve. Take a look at Rachel McAdams's perfect party look!