 The Shadow of the Pharaoh1996 · Writer | Writer |
 Beyond Justice1992 · Screenplay | Screenplay |
 Flatfoot in Egypt1980 · Screenplay | Screenplay |
 The Humanoid1979 · Writer | Writer |
 Emanuelle - A Woman from a Hot Country1978 · Writer | Writer |
 Silver Saddle1978 · Screenplay | Screenplay |
 Flatfoot in Africa1978 · Screenplay | Screenplay |
 Puttana galera!1977 · Writer | Writer |
 Reflections in Black1975 · Screenplay | Screenplay |
 Death Rite1975 · Screenplay | Screenplay |
 Blood, Sweat and Fear1975 · Writer | Writer |
 Kidnap1974 · Writer | Writer |
 Emergency Squad1974 · Screenplay | Screenplay |
 Kiss of a Dead Woman1974 · Screenplay | Screenplay |
 Counselor at Crime1973 · Screenplay | Screenplay |
 Alleluja & Sartana Are Sons... Sons of God1972 · Writer | Writer |
 The Killer Is on the Phone1972 · Writer | Writer |
 Sonny and Jed1972 · Screenplay | Screenplay |
 Man Called Amen1972 · Writer | Writer |
 Your Vice Is a Locked Room and Only I Have the Key1972 · Screenplay | Screenplay |
 Trinity and Sartana Are Coming1972 · Screenplay | Screenplay |
 The Boxer1972 · Writer | Writer |
 Shoot the Living and Pray for the Dead1971 · Writer | Writer |
 The Man with Icy Eyes1971 · Writer | Writer |
 The Last Traitor1971 · Screenplay | Screenplay |
 The Night of the Assassin1970 · Director, Writer | Director, Writer |
 The Legion of No Return1969 · Writer | Writer |
 The Fourth Wall1969 · Director, Screenplay | Director, Screenplay |
 A Place In Hell1969 · Writer | Writer |
 Hole in the Forehead1968 · Screenplay | Screenplay |
 Bloody Che Contra1968 · Writer | Writer |
 Five Days in Sinai1968 · Screenplay | Screenplay |
 Death Rides Along1967 · Screenplay | Screenplay |
 The Cobra1967 · Screenplay | Screenplay |
 Pecos Cleans Up1967 · Screenplay | Screenplay |
 Kill and Pray1967 · Screenplay | Screenplay |
 My Name Is Pecos1966 · Writer | Writer |
 The Battle of the Mods1966 · Screenplay | Screenplay |
 Ringo and His Golden Pistol1966 · Screenplay | Screenplay |
 Man from Canyon City1965 · Writer | Writer |
 Spy in Your Eye1965 · Writer | Writer |
 Minnesota Clay1964 · Screenplay | Screenplay |
 A Very Handy Man1964 · Writer | Writer |
 The Tyrant of Castile1963 · Writer | Writer |
 Brennus, Enemy of Rome1963 · Writer | Writer |
 Slave Girls of Sheba1963 · Screenplay | Screenplay |
 Mondo sulle spiagge1962 · Writer | Writer |
 The Slave1962 · Screenplay | Screenplay |
