The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' British Vogue PART 1: The Green Atonement Dress , #keiraknightley #atonement #fashioninfilm #costume #costumedesign #filmandtv #fashion #jacquelinedurran 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 Green Silk Satin Maxi Dress: Open Back Evening Gown Etsy 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