Writing

2011

… Story … Screenplay

2009

… Original Film Writer

2005

… Story … Screenplay

2003

… Writer

2002

… Screenplay … Story

1990

… Writer

1989

… Screenplay … Story

1987		I padroni dell'estate … Screenplay
1987		An Australian in Rome … Screenplay

1986		The Professor … Screenplay … Story
1986		La ragazza dei lillà … Writer

1984

… Writer

1982		Blood Link … Story
1982		Holy Cow … Screenplay

1981		Un centesimo di secondo … Story … Screenplay
1981		Car Crash … Writer

1980		Speed Driver … Screenplay … Original Story
1980		The Warning … Screenplay
1980		Pumaman … Screenplay

1978		Corleone … Screenplay
1978		Break Up … Screenplay
1978		The Payoff … Screenplay

1977

… Screenplay

1976		The Big Racket … Screenplay … Story
1976		The Con Artists … Screenplay … Story

1975		The Hired Gun … Writer
1975		Order to Kill … Writer

1974

… Writer

1973		The War Goddess … Screenplay
1973		Revolver … Story … Screenplay
1973		Chino … Screenplay
1973		Hospitals: The White Mafia … Screenplay … Story
1973		The Police Serve the Citizens? … Writer

1972		The Sicilian Checkmate … Screenplay
1972		The Valachi Papers … Dialogue

1971		Don't Turn the Other Cheek … Screenplay
1971		The Case Is Closed, Forget It … Screenplay
1971		The Man with Icy Eyes … Writer

1970		Compañeros … Screenplay
1970		Violent City … Story

1969		A Brief Season … Writer
1969		The Tough and the Mighty … Screenplay
1969		A Bullet for Rommel … Writer

1968		Bandits in Rome … Screenplay
1968		The Violent Four … Screenplay

1964

… Story

Production

1966

… Production Manager

1964

… Production Coordinator

1963

… Executive Producer

1961

… Production Manager

1960		Esther and the King … Unit Manager
1960		Black Sunday … Producer

1959		The Giant of Marathon … Assistant Production Manager
1959		Caltiki, the Immortal Monster … Production Manager
1959		Hercules Unchained … Production Assistant

1958

… Production Assistant

1956

… Production Secretary

Acting

2010

as Self

2004

as Self

2003

as Self