Gothic Forest Green Ball Gown with Textured Ruffle Accents Green Evening Dress with Bow Tie Belt Plus Size Size 2 Teal Green The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' British Vogue Keira Knightleys green dress in Atonement , To assemble the wardrobe of the characters, director Joe Wright called on Jacqueline Durran with whom he had worked on the mythical film, Pride and She walked into the room, and time held its breath. Keira Knightley's emerald silk in Atonement (2007) wasn't just a costumeit was cinematic seduction. Named the best movie dress of all