Writing

1988

… Writer

1986

… Screenplay

1984		Conan the Destroyer … Screenplay
1984		Draw! … Writer
1984		Firestarter … Screenplay

1981

… Screenplay

1979

… Screenplay

1978		Circle of Iron … Screenplay
1978		Damien: Omen II … Screenplay

1977

… Story

1976		Breaking Point … Screenplay
1976		Sky Riders … Screenplay

1975

… Screenplay

1973

… Idea

1968

… Writer

1967

… Screenplay

1966

(1 episode) … Writer

1965		Rapture … Screenplay … Writer
1965		The Collector … Screenplay
1965		Up from the Beach … Writer
1965		A High Wind in Jamaica … Screenplay

1964

… Screenplay

1961		The Mark … Screenplay
1961		His and Hers … Writer

1959

… Screenplay

1958

… Screenplay