Gary Douglas Kurtz (July 27, 1940 – September 23, 2018) was an American film producer whose list of credits includes American Graffiti (1973), Star Wars (1977), The Empire Strikes Back (1980), The Dark Crystal (1982) and Return to Oz (1985). Kurtz also co-produced the 1989 science fiction adventure film Slipstream, which reunited him with Star Wars star Mark Hamill. Description above from the Wikipedia article Gary Kurtz, licensed under CC-BY-SA, full list of contributors on Wikipedia