| La RĂ©volte des gladiateurs | 1958 | Screenplay |
| Quanto sei bella Roma | 1959 | Screenplay |
| Il conquistatore di Maracaibo | 1961 | Writer |
| Goliath contre les géants | 1961 | Screenplay |
| Samson contre Hercule | 1961 | Screenplay |
| Il sangue e la sfida | 1962 | Writer |
| Les derniers jours d'herculanum | 1962 | Writer |
| La cieca di Sorrento | 1963 | Writer |
| Il vecchio testamento | 1963 | Screenplay |
| I dieci gladiatori | 1963 | Writer |
| La rivolta dei sette | 1964 | Writer |
| Agente 3S3: Passaporto per l'inferno | 1965 | Writer |
| Assassinio made in Italy | 1965 | Screenplay |
| Centomila dollari per Ringo | 1965 | Screenplay |
| Un colt pour McGregor | 1965 | Writer |
| Asso di Picche: Operazione Controspionaggio | 1965 | Screenplay |
| Surcouf, le tigre des sept mers | 1966 | Screenplay |
| Barbouze chérie | 1966 | Writer |
| Le commissaire X traque les chiens verts | 1966 | Screenplay |
| Les sept colts du tonnerre | 1966 | Screenplay |
| Agente 3S3, massacro al sole | 1966 | Screenplay |
| Duel au couteau | 1966 | Writer |
| Dos pistolas gemelas | 1966 | Screenplay |
| Johnny Yuma | 1966 | Screenplay |
| Mission spéciale... Lady Chaplin | 1966 | Writer |
| Mission spéciale... Lady Chaplin | 1966 | Original Music Composer |
| Ça casse à Caracas | 1966 | Writer |
| Django tire le premier | 1966 | Screenplay |
| Tonnerre sur l'océan Indien | 1966 | Screenplay |
| Qualcuno ha tradito | 1967 | Screenplay |
| Kommissar X - Drei grĂĽne Hunde | 1967 | Screenplay |
| Con la muerte a la espalda | 1967 | Writer |
| Je vais... je tire, et je reviens | 1967 | Screenplay |
| Commissaire X - Trois panthères bleues | 1968 | Screenplay |
| Un killer per sua maestĂ | 1968 | Writer |
| Je vends cher ma peau | 1968 | Screenplay |
| Sonora | 1968 | Writer |
| Adios Caballero | 1968 | Screenplay |
| Playgirl 70 | 1969 | Writer |
| Bonnes Funérailles, Amis, Sartana paiera | 1970 | Screenplay |
| Le lys de mer | 1971 | Writer |
| La casa de las muertas vivientes | 1972 | Writer |
| La casa de las palomas | 1972 | Writer |
| Judas... ¡toma tus monedas! | 1972 | Screenplay |
| Les Sept Châles de soie jaune | 1972 | Writer |
| Tedeum | 1972 | Screenplay |
| Il ritorno di Clint il solitario | 1972 | Screenplay |
| I bandoleros della dodicesima ora | 1972 | Screenplay |
| La muerte incierta | 1973 | Writer |
| Les Diablesses | 1973 | Screenplay |
| Manone il ladrone | 1974 | Screenplay |
| Fantasma en el Oeste | 1974 | Writer |
| VirilitĂ | 1974 | Writer |
| Buck le loup | 1975 | Writer |
| Pied-plat - Inspecteur Bulldozer | 1978 | Screenplay |
| The Squeeze | 1978 | Screenplay |
| John Travolto... da un insolito destino | 1979 | Writer |
| La parte piĂą appetitosa del maschio | 1979 | Writer |
| Doppio sesso incrociato | 1980 | Writer |
| Y a-t'il un fantĂ´me dans mon lit ? | 1981 | Writer |
| Le Temple du Dieu Soleil | 1984 | Writer |
| La leggenda del rubino malese | 1985 | Screenplay |
| Escape from Death | 1989 | Screenplay |
| Nightmare concert | 1990 | Screenplay |
