Who could blame Carey Mulligan for being in a celebratory mood on Nov. 15?

Deadline reported that during the 2010 CFDA/Vogue Fashion Fund event, the "Wall Street" actress received a call from "Great Gatsy" director Baz Luhrmann letting her know she would play Daisy Buchanan in the upcoming remake! The conversation prompted Mulligan to burst into tears in front of designer Karl Lagerfeld and Vogue editor in chief Anna Wintour.

The 25-year-old British actress wore a sequined embroidered Chanel dress. Her pixie cut was combed back and she added a gold box clutch to complete the look.

Like Natalie Portman, Mulligan matched her shoes to her dress. Do we spot a trend?

Mulligan had the honor of joining Lagerfeld on stage to announce menswear designer Billy Reid as the winner that evening. Learn more about the designer, who is now $300,000 richer!

Love Carey's style? Click here for a roundup of her best looks.