keira knightley green atonement dress One Iconic Look: Knightley's Gown in "Atonement" (2007) Keira Knightley’s green dress from

Styling Tip: Since the corset is the focal point, you can go lighter on the neck jewelry

You could add a scarf, some great earrings or a really fun bag as well

Sleeper Pudding Silk Loungewear Dress We love that one size fits all with this silk loungewear dress by Sleeper, known for its versatile actual pajamas that look dressy enough for outside of the house

Following the screening, Clooney changed into a gold mini dress, which was adorned with flowers, sequins, and crystals for an after-party with Bono

Splurge white graduation dress Zimmermann Wayfarer Linen Lace Dress, $850, Saks Fifth Avenue This is a splurge, but it might be worth it for a special occasion