By Rose Walano
Updated Aug 23, 2012 @ 4:00 pm
Joseph Gordon-Levitt, Jamie Chung, Dania Ramirez
Credit: D Dipasupil/FilmMagic

Premium Rush stars Joseph Gordon-Levitt, Jamie Chung, and Dania Ramirez hugged it out at the premiere of their new action flick at the Union Square Regal in New York City last night. Chung Instagrammed a photo of the film's posters on the way to the event with the caption, "Ahhh butterflies and nerves!" However, there was no need to be nervous—she looked great in cobalt Cushnie et Ochs. Click through to see more photos from this week's hottest parties.