Writing
Sacco & Vanzetti
1971 · Story
Keoma
1976 · Screenplay
Machine Gun McCain
1969 · Writer
Grand Slam
1967 · Screenplay
Beyond the Law
1968 · Screenplay
California
1977 · Screenplay
The Master Touch
1972 · Writer
Matalo! (Kill Him)
1970 · Writer
Kill the Wicked!
1967 · Writer
High Voltage
1972 · Screenplay
Salvo D'Acquisto
1974 · Screenplay
Carambola's Philosophy: In the Right Pocket
1975 · Screenplay
Unscrupulous
1986 · Story
Covert Action
1978 · Screenplay
Carambola!
1974 · Writer
The Silk Worm
The Story of a Poor Young Man
On the Third Day Arrived the Crow
1973 · Writer
The Pisciotta Case
To Kill in Silence
1972 · Dialogue
The Smugglers
1971 · Adaptation
Gioventù disperata
1957 · Screenplay
The Boatman of Amalfi
1954 · Screenplay
Salvate mia figlia
1952 · Producer
