Green Viscose Maxi Dress: 'Atonement' Style Open Back Gown 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 The Art of the Bias Cut: Why Our Dresses Feel Like a Second Skin Atonement Emerald Silk Dress Community Thrift and Vintage Atonement Dress Pattern Etsy