The vampires and werewolves came out to play last night at a screening of The Twilight Saga: New Moon at Landmark's Sunshine Cinema in New York. All the principal cast members were in attendance - Ashley Greene, Nikki Reed and Taylor Lautner, as well as rumoured off-screen couple Kristen Stewart and Robert Pattinson. After watching the second in the series of Twilight films on the eve of its general release today, the actors attended a swish after-party, hosted by D&G and the Cinema Society, and were joined by a whole host of other stylish stars, including honorary New Yorker Alexa Chung, Erin Wasson, Jessica Stam, Natalie Portman, Agyness Deyn and Taylor Momsen. Read on to see who wore what...

Picture: The teenage Twilight star wore an olive Valentino dress with Sergio Rossi heels.