off shoulder midi dress In Blooms Mesh Brown This garment fits true to size Black Bow Detail Off Shoulder

For Her: Dress pants or khakis with a fashionable top is appropriate

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

If you wear what you love and what you feel your best in your confidence will shine through and that is the best accessory a woman can wear

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

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