ISABEL MARANT Etoile Women\'s Ro Linore Dress Green Khaki Keira Knightley and James McAvoy in 'Atonement' (2007). The green dress which Keira Knightley wore in this movie has been named "the best of all time" by InStyle Magazine, exceeding some classics The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' Vogue Outfits of Atonement: Keira Knightley wears Satin Green Dress to play Cecilia Tallis in the movie Spotern PART 1: The Green Atonement Dress #keiraknightley #atonement #fashioninfilm #costume #costumedesign #filmandtv #fashion #jacquelinedurran Anyone else still thinking about Keira Knightley's backless green dress from Atonement, 13 years later? At the link in bio, our style editor examines why the backless trend became an unlikely