Over the weekend, Blake Lively, Leighton Meester, Ed Westwick and the Gossip Girl cast celebrated 100 episodes at Cipriani Wall St., Luc Carl and George Seville opened Ludlow Manor- complete with palm trees and topless mermaids, Charlize Theron attended the premiere of "Young Adult", Chrissie Miller and Charlotte Ronson hit up the opening of 143 and so much more.  Last night's parties were all about openings. - - - [Photo via BFA]

Micah Jesse Carolyn Murphy Fabiola Beracasa Charlize Theron Kim Cattrall Mickey Boardman Theophilus London Blake Lively Robert Verdi Charlotte Ronson Hilary Rhoda Leighton Meester The New Museum Chace Crawford Penn Badgley Alan Rickman Cory Kennedy Chrissie Miller Ed Westwick Derek Blasberg Double Seven Kelly Rutherford H&M Debra Messing Douglas Friedman DJ Nick Cohen Tribeca Grand Hotel Andy Cohen Jen Brill Cipriani Wall Street Matthew Settle Alex Richards Bettina Prentice Jerry O'Connell Lily Collins Michelle Harper Anne Koch Marjorie Gubelmann Prabal Gurung James Marsden Michelle Trachetenberg Jeremy Renner Diablo Cody Denis Leary Karlie Kloss Jesse Tyler Ferguson Rebecca Romijn BryanBoy Chloe MOretz Tony Danza\ Shooter Jennings Luc Carl Anja Rubik Drea de Matteo Lindsey Thornburg The Golden Theatre Patton Oswalt ludlow manor george seville Gossip Girl Celebrates 100 Episodes Grand Opening Of Ludlow Manor The Cinema Society And Dior Beauty Host A Screening Of Young Adult Opening Of 143 New Museum New York Next Generation Party Opening Night Of Seminar Versace for H&M Exclusive Pre-Shopping Party New York Junior League Fall Fete Box Bully Launch Party At Rebel JoAnna Garcia Swisher Alice Wang Troy Arcand Savoia Bunny Love Fiona Scarry Elisabeth von Thurn und Taxis h&m fifth avenue