1959
The Warrior and the Slave Girl
Scenario Writer
1961
Conqueror of Maracaibo
Writer
Goliath Against the Giants
Screenplay
1962
79 A.D.
Writer
1963
The Ten Gladiators
Screenplay
Revenge of the Black Knight
Writer
1965
That Man in Istanbul
Story
$100,000 for Ringo
Screenplay
Assassination in Rome
Screenplay and Story
Agent 3S3: Passport to Hell
Writer
1966
The Sea Pirate
Screenplay
Knives of the Avenger
Writer
Special Mission Lady Chaplin
Writer
Balearic Caper
Writer
Johnny Yuma
Screenplay
Kiss Kiss, Kill Kill
Screenplay
Countdown to Doomsday
Writer
Seven Guns for Timothy
Screenplay
The Big Hit of Surcouf
Screenplay
1967
Destino: Estambul 68
Story
Any Gun Can Play
Writer
Kill Me Gently
Screenplay
Every Man Is My Enemy
Screenplay
1968
Sartana Does Not Forgive
Writer
Kill, Panther, Kill!
Screenplay
I Do Not Forgive... I Kill!
Story
I'll Sell My Skin Dearly
Screenplay
Day After Tomorrow
Screenplay
The Young, the Evil and the Savage
Story
1969
Raped On The Beach
Writer
Playgirl 70
Writer
1970
Have a Good Funeral, My Friend… Sartana Will Pay
Writer
1971
The Great Swindle
Author
1972
The Crimes of the Black Cat
Writer
Father Jackleg
Story and Screenplay
A Noose Is Waiting for You Trinity
Screenplay
Now They Call Him Sacramento
Screenplay
Night of the Scorpion
Writer
1973
Seven Deaths in the Cat's Eye
Story and Screenplay
The Uncertain Death
Writer
Mr. Hercules Against Karate
Adaptation
1974
Virility
Writer
Whisky and Ghosts
Writer
White Fang to the Rescue
Writer
1978
The Squeeze
Story and Screenplay
Flatfoot in Africa
Screenplay
1979
John Travolto: The Face with Two Left Feet
Writer
La parte más apetitosa del hombre
Writer
1980
Sexual Doublecross
Writer
1981
C'è un fantasma nel mio letto
Writer
1985
Jungle Raiders
Screenplay and Story
1989
Bloody Psycho
Writer
Blood Moon
Screenplay
1990
Hansel and Gretel
Screenplay
A Cat in the Brain
Story and Screenplay