| Vivere ancora | 1945 | Screenplay |
| L'abito nero da sposa | 1945 | Screenplay |
| Le Passé qui tue | 1945 | Screenplay |
| Il vento m'ha cantato una canzone | 1947 | Screenplay |
| Fuga in Francia | 1948 | Screenplay |
| Les Feux du music-hall | 1950 | Screenplay |
| Paris est toujours Paris | 1951 | Screenplay |
| Gendarmes et Voleurs | 1951 | Screenplay |
| Le Cheik blanc | 1952 | Screenplay |
| Il mondo le condanna | 1953 | Screenplay |
| Riscatto - Tu sei il mio giudice | 1953 | Writer |
| Les Vitelloni | 1953 | Screenplay |
| Villa Borghese | 1953 | Screenplay |
| Destinées | 1954 | Writer |
| Vestire gli ignudi | 1954 | Writer |
| Où est la liberté ? | 1954 | Screenplay |
| Notre temps | 1954 | Screenplay |
| Vergine moderna | 1954 | Screenplay |
| La romana | 1954 | Screenplay |
| Camilla | 1954 | Screenplay |
| Dommage que tu sois une canaille | 1954 | Screenplay |
| Le Signe de Vénus | 1955 | Screenplay |
| Il bidone | 1955 | Screenplay |
| La Chance d'être femme | 1956 | Screenplay |
| Calabuig | 1956 | Screenplay |
| Les Nuits de Cabiria | 1957 | Screenplay |
| Fortunella | 1958 | Screenplay |
| Femmes d'un été | 1958 | Screenplay |
| La dolce vita | 1960 | Screenplay |
| L'Inassouvie | 1960 | Screenplay |
| La Nuit | 1961 | Screenplay |
| Fantômes à Rome | 1961 | Screenplay |
| Boccace 70 | 1962 | Screenplay |
| Le tentazioni del Dottor Antonio | 1962 | Screenplay |
| Huit et demi | 1963 | Screenplay |
| Le Bourreau | 1963 | Screenplay |
| Tonio Kröger | 1964 | Writer |
| Wälsungenblut | 1965 | Writer |
| Una moglie americana | 1965 | Screenplay |
| La Fleur de l'âge | 1965 | Screenplay |
| Juliette des esprits | 1965 | Screenplay |
| La Dixième Victime | 1965 | Screenplay |
| Moi, moi, moi et les autres | 1966 | Screenplay |
| Le Plus Vieux Métier du monde | 1967 | Writer |
| Les protagonistes | 1968 | Screenplay |
| Colpo rovente | 1970 | Screenplay |
| Liza | 1972 | Writer |
