Writing

1989

… Writer

1982

… Writer

1980

… Teleplay

1975

… Writer

1974

… Writer

1973		Soylent Green … Screenplay
1973		Pueblo … Writer

1972		Skyjacked … Screenplay
1972		Welcome Home, Johnny Bristol … Writer

Acting

2013

as Lui-même

1981

as Himself

Production

1982

… Producer