Elizabeth Taylor “Avatar” star Sigourney Weaver revealed some insight about James Cameron’s highly anticipated “Avatar: The Way of Water,” which premieres Dec. 16. “The story is about family, about our families trying to stay together [and] the lengths to which we all go to protect each other and protect the place where we live,” Weaver told Variety at a special screening for her new film “The Good House” in New York City. “It’s very much based on Jim’s family and his joy in the family; and also, how vulnerable you are when you have children.” A hit for over a decade since its original release, “Avatar” once again dominated the box office with an impressive re-release in theaters. Ahead of the upcoming sequel, the 2009 sci-fi epic wowed with $30 million worldwide in ticket sales, as reported on Sept. 25.