Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | El bueno, el feo y el malo | 1966 | |
| Writer | Hasta que llegó su hora | 1968 | |
| Writer | La muerte tenía un precio | 1965 | |
| Writer | ¡Agáchate, maldito! | 1971 | |
| Writer | Ejecutor | 1986 | |
| Writer | Orca, la ballena asesina | 1977 | |
| Writer | Slap the Monster on Page One | 1972 | |
| Writer | Dos granujas en el Oeste | 1981 | |
| Writer | El halcón y la presa | 1966 | |
| Writer | Bala blindada | 1987 | |
| Writer | Count Tacchia | 1982 | |
| Writer | Count Tacchia | 1982 | |
| Writer | The Little Lord | 1996 | |
| Writer | Bonnie y Clyde a la italiana | 1983 | |
| Writer | The Sicilian Girl | 2008 | |
| Writer | Almost Blue | 2000 | |
| Writer | La isla de los hombres peces | 1979 | |
| Writer | Cara a cara | 1967 | |
| Writer | Casablanca, Casablanca | 1985 | |
| Writer | Holocausto 2000 | 1977 | |
| Writer | Holocausto 2000 | 1977 | |
| Writer | Tit for Tat | 1984 |