Marcia Lucas, the Oscar-winning film editor behind Star Wars and the ex-wife of director George Lucas , has died. She was 80. Lucas died Wednesday in Rancho Mirage, California, from cancer. “Marcia will be remembered as a brilliant storyteller, a trailblazer for women in film, a loving mother and grandmother, a generous host and a loyal friend whose humor and sparkle filled every room she entered. Her influence on film is indelible, but those who knew her best will remember the way she made life feel more vivid, more beautiful, more fun and more full of love,” her family said in a statement. A California native, Lucas (née Griffin) got her start in editing via the Motion Picture Editors Guild apprenticeship program and eventually became the assistant to lauded female film editor Verna Fields ( Jaws , Paper Moon ). It was while working with Fields that she met her future husband, then a student in the film school at the University of Southern California, who had also been hired to assist Fields.…