The film industry is mourning the loss of Marcia Lucas, the Academy Award-winning editor whose work helped shape Star Wars and some of the most influential movies of the 1970s. Lucas died on Wednesday, May 27, at her home in Rancho Mirage, California, after a battle with cancer. She was 80 years old. While her name may not have been as recognizable as the directors she worked alongside, Lucas played a key role behind the scenes on a string of landmark films. According to NBC News , her credits include American Graffiti , Star Wars , Return of the Jedi , Alice Doesn't Live Here Anymore , Taxi Driver , and New York, New York . She earned an Oscar for Best Film Editing for the original Star Wars in 1978 and was previously nominated for her work on American Graffiti . She also received a BAFTA nomination for Taxi Driver .…