| Le Masque du démon | 1960 | Producer |
| La Fille qui en savait trop | 1963 | Executive Producer |
| Bandits à Milan | 1968 | Screenplay |
| Roma come Chicago | 1968 | Screenplay |
| Pas de pitié pour les héros | 1969 | Writer |
| Barbagia | 1969 | Screenplay |
| Una breve stagione | 1969 | Writer |
| Compañeros | 1970 | Screenplay |
| L'uomo dagli occhi di ghiaccio | 1971 | Writer |
| Nous sommes tous en liberté provisoire | 1971 | Screenplay |
| Et viva la révolution | 1971 | Screenplay |
| La violenza: Quinto potere | 1972 | Screenplay |
| Les grands patrons | 1973 | Screenplay |
| La polizia è al servizio del cittadino? | 1973 | Screenplay |
| Chino | 1973 | Screenplay |
| La Poursuite implacable | 1973 | Screenplay |
| Les Amazones | 1973 | Screenplay |
| Un citoyen se rebelle | 1974 | Writer |
| El clan de los inmorales | 1975 | Writer |
| Vai gorilla | 1975 | Writer |
| Bluff Histoire d'escroqueries et d'impostures | 1976 | Screenplay |
| Big Racket | 1976 | Screenplay |
| Action immédiate | 1977 | Screenplay |
| La mazzetta | 1978 | Screenplay |
| Eutanasia di un amore | 1978 | Screenplay |
| Corleone | 1978 | Screenplay |
| L'Incroyable Homme Puma | 1980 | Screenplay |
| L'avvertimento | 1980 | Screenplay |
| Speed Driver | 1980 | Screenplay |
| L'Enfer en quatrième vitesse | 1981 | Writer |
| Un centesimo di secondo | 1981 | Screenplay |
| Marche au pas ! | 1982 | Screenplay |
| Blastfighter | 1984 | Writer |
| La ragazza dei lillà | 1986 | Writer |
| Le Maître de la camorra | 1986 | Screenplay |
| I padroni dell'estate | 1987 | Screenplay |
| Ils vont tous bien ! | 1990 | Writer |
| Incompreso | 1998 | Writer |
| Piccolo Mondo Antico | 2001 | Writer |
| De Gasperi - L'uomo della speranza | 2005 | Screenplay |
| Einstein | 2008 | Writer |
