Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | 크로우 | 1994 | |
| Writer | 저지 드레드 | 1995 | |
| Writer | 로보캅 2 | 1990 | |
| Writer | 위험한 게임 | 1983 | |
| Writer | 이레이저 | 1996 | |
| Writer | 이레이저 | 1996 | |
| Writer | 와일드 번치 | 1969 | |
| Writer | 와일드 번치 | 1969 | |
| Producer | 스나이퍼 | 1993 | |
| Writer | 소서러 | 1977 | |
| Writer | The Border | 1982 | |
| Writer | Solarbabies | 1986 | |
| Writer | Morituri | 1965 | |
| Writer | The Hi-Lo Country | 1998 | |
| Writer | The Brink's Job | 1978 | |
| Writer | L.A. Confidential | 2003 | |
| Writer | Strange New World | 1975 | |
| Writer | Without Warning | 1994 |