Survival story The Grey wins weekend box office LOS ANGELES (Reuters) - Survival story "The Grey" starring Liam Neeson topped the weekend movie box office charts with an estimated $20 million in U.S. and Canadian ticket sales, according to studio estimates released on Sunday. "The Grey" knocked last weekend's winner, "Underworld: Awakening," to second place. The vampire and werewolf sequel starring Kate Beckinsale brought in $12.5 million from Friday through Sunday. New Katherine Heigl comedy "One for the Money" finished third with $11.8 million. Open Road Films, a joint venture between theater owners Regal Entertainment Group and AMC Entertainment Inc, released "The Grey." The film unit of Sony Corp distributed "Underworld: Awakening." "One for the Money" was released by Lions Gate Entertainment. Reporting By Lisa Richwine; Editing by Xavier Briand