Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | The Asphalt Jungle | 1950 | |
| Writer | Johnny Guitar | 1954 | |
| Writer | The Unforgiven | 1960 | |
| Writer | The Way West | 1967 | |
| Writer | Tajemnica Santa Vittoria | 1969 | |
| Writer | Murder by Contract | 1958 | |
| Writer | Kiss the Blood Off My Hands | 1948 | |
| Writer | The Mephisto Waltz | 1971 |