The Twilight Saga is an American romantic fantasy film series based on the novels by Stephenie Meyer. It follows the story of Bella Swan, a teenage girl who falls in love with Edward Cullen, a vampire. When Bella moves to Forks to live with her father, she meets Edward and learns he is a vampire. Edward and his vampire family help protect Bella from the dangerous vampires Victoria and James who want to kill her. Over the course of several films, Bella and Edward's relationship develops as they try to have a normal life together despite the challenges of Edward being a vampire.