Keira Knightley's golden Gucci dress in 2006 : r rs_x 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 Lexi backless Dress (White) DULCETMIA White Backless Dresses Hello Molly US High Neck Back Bow Dress in White LUCY IN THE SKY Bow Backless Maxi Dress White Luxe Maxi Dresses and Luxe Party Dresses