 Encantado2002 · Writer | Writer |
 Laura non c'è1998 · Screenplay | Screenplay |
 Addio e Ritorno1996 · Writer | Writer |
 Secret Scandal1990 · Writer | Writer |
 The Last Match1990 · Writer | Writer |
 The House of Clocks1989 · Screenplay | Screenplay |
 Cobra Mission 21989 · Writer | Writer |
 The Man Who Didn't Want to Die1989 · Screenplay | Screenplay |
 The House of Witchcraft1989 · Writer | Writer |
 Phantom of Death1988 · Screenplay | Screenplay |
 Delirium: Photo of Gioia1987 · Screenplay | Screenplay |
 Evil Senses1986 · Writer | Writer |
 Desiring Julia1986 · Screenplay | Screenplay |
 Cobra Mission1986 · Writer | Writer |
 Miami Golem1985 · Screenplay | Screenplay |
 Tex and the Lord of the Deep1985 · Screenplay | Screenplay |
 Monster Shark1984 · Screenplay | Screenplay |
 Murder-Rock: Dancing Death1984 · Screenplay | Screenplay |
 I camionisti1982 · Screenplay | Screenplay |
 The New York Ripper1982 · Screenplay | Screenplay |
 Desirable Teacher 21982 · Screenplay | Screenplay |
 Desirable Teacher1981 · Screenplay | Screenplay |
 House on the Edge of the Park1980 · Writer | Writer |
 Cannibal Holocaust1980 · Screenplay | Screenplay |
 From Hell to Victory1979 · Screenplay | Screenplay |
 Emanuelle Around the World1977 · Writer | Writer |
 Weapons of Death1977 · Screenplay | Screenplay |
 Last Cannibal World1977 · Screenplay | Screenplay |
 Nazi Love Camp 271977 · Screenplay | Screenplay |
 A Special Cop in Action1976 · Screenplay | Screenplay |
 Rome, the Other Face of Violence1976 · Screenplay | Screenplay |
 Lunatics and Lovers1976 · Writer | Writer |
 Shadows in an Empty Room1976 · Screenplay | Screenplay |
 Smiling Maniacs1975 · Screenplay | Screenplay |
 The Two Missionaries1974 · Screenplay | Screenplay |
 Five Women for the Killer1974 · Screenplay | Screenplay |
 The Antichrist1974 · Writer | Writer |
 Innocence and Desire1974 · Screenplay | Screenplay |
 High Crime1973 · Writer | Writer |
 La calandria1972 · Screenplay | Screenplay |
 Don't Torture a Duckling1972 · Screenplay | Screenplay |
 The Bloodstained Butterfly1971 · Writer | Writer |
 Maniacs on Wheels1970 · Writer | Writer |
 Tarzana: The Wild Woman1969 · Writer | Writer |
 Shadow of Death1969 · Writer | Writer |
 Un corpo caldo per l'inferno1969 · Screenplay | Screenplay |
 Poppea's Hot Nights1969 · Writer | Writer |
 Son of Black Eagle1968 · Screenplay | Screenplay |
 Samoa, Queen of the Jungle1968 · Writer | Writer |
 Assault on the State Treasure1967 · Screenplay | Screenplay |
 A Million Dollars for 7 Murders1966 · Screenplay | Screenplay |
 Zorro il ribelle1966 · Writer | Writer |
