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Carey Mulligan, The Great Gatsby Premiere

Stephen Lovekin/Getty Images

No jeans here!

Stars went all out at The Great Gatsby premiere in New York City tonight. Carey Mulligan stunned in a red Lanvin number with Tiffany and Co. jewels.

Not that the dudes weren't looking dapper themselves. Leonard DiCaprio, Tobey Maguire and Jay-Z all cleaned up nicely in well-tailored suits.

Another highlight? Isla Fisher looked lovely in a floral Dolce & Gabbana dress.

To see all the stars' arrivals, including Florence Welch and Anna Wintour, click through our arrivals gallery.

For more from The Great Gatsby's NYC premiere, tune in to E! News on Thursday at 7 p.m.