All of Keira Knightley's outfits in Atonement (2007) Obsession in Green The Atonement Dress Closet Core Patterns The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' Vogue Keira Knightley's stunning blue dress from Atonement, considered the most beautiful of all time, is making a comeback. Atonement dress, Keira Knightley, Green Dress UK Velvet Birdcage The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' British Vogue