Atonement: Keira Knightley's Green Dress Clothes on film The green dress which Keira Knightley wore in Atonement (2007) has been named "the best of all time" by InStyle Magazine, exceeding some classics as Audrey Hepburn's little black dress in Breakfast Keira Knightley, James Norton and Bridgerton costumes go on show Keira Knightley shines in emerald gown at Harper's Bazaar awards Irish Mirror Keira Knightley's Atonement dress that everyone wanted wasn't actually a dress YouTube 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