'Twilight' stars gather to reflect on franchise's bittersweet ending The stars of "Twilight" gathered for the final time at the Comic-Con pop culture convention yesterday, laughing and joking with fans as they reflected on a "bittersweet" end to the film franchise that catapulted them to fame. The "Twilight" films - five in all based on a series of young adult novels by author Stephenie Meyer about a vampire, Edward Cullen, who falls in love with a human girl, Bella Swan - have become a blockbuster franchise earning $2.5 billion at global box offices from the first four films.