- Anita Garibaldi
2012 Writer
- Caruso, the voice of love
2012 Writer
- General della Rovere
2011 Screenplay
- Everybody's Fine
2009 Original Film Writer
- Einstein
2008 Writer
- Mafalda of Savoy
2006 Writer
- The Heart in the Well
2005 Story
- De Gasperi: The Man of Hope
2005 Story
- Rivoglio i miei figli
2004 Writer
- Ferrari
2003 Writer
- Ferrari
2003 Writer
- La guerra è finita
2002 Story
- La guerra è finita
2002 Story
- Tides of Change
2001 Writer
- Padre Pio: Miracle Man
2000 Writer
- Incompreso
1998 Writer
- Kidnapping – Ein Vater schlägt zurück
1998 Screenplay
- Everybody's Fine
1990 Writer
- The Mask of Satan
1990 Screenplay
- Eyewitness
1990 Screenplay
- Sabbath
1989 Script
- Rally
1989 Writer
- The Secret of the Sahara
1988 Writer
- An Australian in Rome
1987 Screenplay
- I padroni dell'estate
1987 Screenplay
- Skipper
1987 Writer
- The Professor
1986 Screenplay
- La ragazza dei lillà
1986 Writer
- Blastfighter
1984 Writer
- Holy Cow
1982 Screenplay
- Blood Link
1982 Story
- Car Crash
1981 Writer
- Un centesimo di secondo
1981 Story
- Speed Driver
1980 Original Story
- Pumaman
1980 Screenplay
- The Warning
1980 Screenplay
- La baraonda
1980 Story
- Corleone
1978 Screenplay
- Break Up
1978 Screenplay
- The Payoff
1978 Screenplay
- The Heroin Busters
1977 Screenplay
- The Big Racket
1976 Screenplay
- The Con Artists
1976 Screenplay
- Order to Kill
1975 Writer
- Go Gorilla, Go!
1975 Writer
- Street Law
1974 Writer
- Revolver
1973 Screenplay
- The Valdez Horses
1973 Screenplay
- War Goddess
1973 Screenplay
- Hospitals: The White Mafia
1973 Story
- The Police Serve the Citizens?
1973 Screenplay
- The Valachi Papers
1972 Dialogue
- The Sicilian Checkmate
1972 Screenplay
- The Man with Icy Eyes
1971 Writer
- Don't Turn the Other Cheek
1971 Screenplay
- The Case Is Closed, Forget It
1971 Screenplay
- Violent City
1970 Story
- Compañeros
1970 Screenplay
- The Tough and the Mighty
1969 Screenplay
- A Bullet for Rommel
1969 Writer
- A Brief Season
1969 Writer
- The Violent Four
1968 Screenplay
- Bandits in Rome
1968 Screenplay
- The Man Who Laughs
1966 Production Manager
- Attack and Retreat
1964 Production Coordinator
- Rome Against Rome
1964 Story
- The Girl Who Knew Too Much
1963 Executive Producer
- Erik the Conqueror
1961 Production Manager
- Black Sunday
1960 Producer
- Esther and the King
1960 Unit Manager
- Hercules Unchained
1959 Production Assistant
- The Giant of Marathon
1959 Assistant Production Manager
- Caltiki, the Immortal Monster
1959 Production Manager
- Ragazzi di Trastevere
1959 Production Supervisor
- Hercules
1958 Production Assistant
- Noi siamo le colonne
1956 Production Secretary
