Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Star Wars V. rész – A Birodalom visszavág | 1980 | |
| Writer | Rio Bravo | 1959 | |
| Writer | A hosszú álom | 1946 | |
| Writer | A hosszú búcsú | 1973 | |
| Writer | El Dorado | 1966 | |
| Writer | Állatfogó kommandó | 1962 | |
| Writer | Rio Lobo | 1970 |
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Star Wars V. rész – A Birodalom visszavág | 1980 | |
| Writer | Rio Bravo | 1959 | |
| Writer | A hosszú álom | 1946 | |
| Writer | A hosszú búcsú | 1973 | |
| Writer | El Dorado | 1966 | |
| Writer | Állatfogó kommandó | 1962 | |
| Writer | Rio Lobo | 1970 |