Solid Halter Neck Backless Bodycon Dress Oman Leely Women Simple Ivory Halter Neck Maxi Engagement Dress Backless Bodycon Satin Bridal Shower Dress 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 One Iconic Look: Keira Knightley's Green Gown in "Atonement" (2007) Tom + Lorenzo