Edwin Greenwood and Don Coscarelli are both what? 
Edwin Greenwood: Edwin Greenwood (1895-1939) was a British screenwriter and film director. Don Coscarelli: Don Coscarelli, Jr. (born February 17, 1954) is a Libyan-American film director, producer and screenwriter best known for horror films. His credits include the "Phantasm" series, "The Beastmaster", and "Bubba Ho-Tep".
film director