 A screenplay for Twilight was written by Melissa Rosenberg and has been adapted into a film by Summit Entertainment . The film was directed by Catherine Hardwicke , with Kristen Stewart and Robert Pattinson in the leading roles of Isabella Swan and Edward Cullen , respectively . The movie was released in the United States on November 21 , 2008 . Twilight : The Complete Illustrated Movie Companion , written by Mark Cotta Vaz , was released October 28 . 
