Atonement Film Green Dress Library Scene UK. Keira Knightley and James McAvoy in the (C)Universal Pictures film: Atonement (2007). Plot: Thirteen year old fledgling writer Briony Tallis irrevocably changes the course of several lives when she accuses her older sister's For Keira Knightleys mesmerizing green dress in Atonement (2008), the director had specific visions: it needed to convey lightness, be long in length, and exhibit a certain shade of green. Tailored Keira Knightley wearing a green dress created by costume designer Jacqueline Durran in the 2007 film 'Atonement' : r whatthefrockk