off shoulder midi dress In Blooms Mesh Brown with a subtle high Wonder Beauty Off Shoulder Mesh

(The Court Jeweller has a good post about that, too.) Emily Blunt is wearing a replica in the screenshot above from The Young Victoria

You can reuse an old pink dress you might already have, buy a proper one with the intention of reusing it for prom, or go the costume route for a more film-accurate look

Choose one in an oversized fit to keep things fresh, and dont forget to alter the sleeves so that they are of the right length

Features: banded round neckline, dropped shoulders, cuffed long sleeves, high-low hemline, pullover style

Taylor Swift, 2013 Taylor Swift looked glorious in head-to-toe gold at the 2013 American Music Awards