Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | 오버 더 톱 | 1987 | |
| Writer | 타워링 | 1974 | |
| Writer | 더티 해리 3 - 집행자 | 1976 | |
| Writer | 밤의 열기 속으로 | 1967 | |
| Writer | 포세이돈 어드벤쳐 | 1972 | |
| Writer | Village of the Damned | 1960 | |
| Producer | 샤프트 | 1971 | |
| Writer | 스웜 | 1978 | |
| Writer | Charly | 1968 | |
| Writer | Shaft in Africa | 1973 | |
| Writer | The Killer Elite | 1975 | |
| Writer | Telefon | 1977 | |
| Writer | Marlowe | 1969 | |
| Writer | When Time Ran Out... | 1980 | |
| Writer | The New Centurions | 1972 | |
| Writer | The Slender Thread | 1965 | |
| Writer | Murphy's War | 1971 | |
| Writer | The Grass Harp | 1995 | |
| Writer | Nightfall | 1957 |