Gary Kurtz, a producer on “Star Wars” and “The Empire Strikes Back,” has died. He was 78. According to a statement by The Kurtz/Joiner Archive, the producer died from cancer on Sunday in North London, England. “Gary Kurtz, Star Wars producer passed away on Sunday the 23rd of September at 4.47pm after living with Cancer for the last year,” read the statement. “We have him to thank for these wonderful memories that he made for us all. Gary Kurtz helped to create the force and it is with us always. Gary Kurtz left behind Clare Gabriel, Tiffany Kurtz, Melissa Kurtz,...