The highly anticipated remake of The Great Gatsby hits theaters on May 10, but we already have an inside look at some of the gorgeous costumes worn in the movie. Last night at the Dress Gatsby bash in NYC, celebrity guests including Carey Mulligan, Alexa Chung, Katy Perry, and more were treated with an up close look at the costumes designed by costume designer Catherine Martin and Miuccia Prada. Clearly the night was all about Prada, so sit back and take a look at the costumes and the stylish Prada-clad celebrities. On Allison: Topshop dress, H&M top.