Writing

2023

… Writer

2020

… Musical

2002

… Screenplay

1998

… Screenplay

1995

… Screenplay

1993

… Musical

1987

… Writer

1980

… Writer

1978

… Screenplay

1977

… Writer

1976

… Teleplay

1974		The Taking of Pelham One Two Three … Screenplay
1974		Free to Be… You and Me … Story

1972

… Theatre Play … Screenplay

1971

… Writer

1969

… Screenplay

1968		Jigsaw … Writer
1968		The Secret War of Harry Frigg … Writer

1967		Androcles and the Lion … Writer
1967		Ghostbreakers … Writer

1966

… Screenplay

1965		Skyscraper … Writer
1965		Mirage … Screenplay

1964

… Writer

1963

… Story … Screenplay

Acting

1990

as Himself

1963

as Man in Elevator / Marine (voice) (uncredited)