Ashley Greene at Breaking Dawn Part 2 Premiere NYC

While Robert Pattinson and Kristen Stewart made the rounds in Madrid, their costars kept busy with the Breaking Dawn Part 2 premiere in NYC. Twihards everywhere will get the long-anticipated finale to the Twilight Saga when it hits theaters today, but we've been more preoccupied with what the film's cast of characters are wearing on the red carpet. Last night, starlets Ashley Greene, Nikki Reed, and Elizabeth Reaser showed a decidedly sexier side, with their respective gowns and party dresses. Ashley showed off a moody Donna Karan Atelier gown with a figure-flaunting bustier, while Nikki turned up the glamour in a fringed and beaded Naeem Khan confection. But it wasn't just about the film's leading vampires ladies — celebs like Nicky Hilton, Rachel Roy, and Lindsay Ellingson glammed up to celebrate the final Twilight chapter. Click on to see who wore what — then tell us your pick for best dressed in the comments.