Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Terminator 2 - Tag der Abrechnung | 1991 | |
| Writer | Terminator | 1984 | |
| Writer | Stirb langsam - Jetzt erst recht | 1995 | |
| Writer | Stirb langsam 4.0 | 2007 | |
| Writer | Judge Dredd | 1995 | |
| Writer | Nightmare on Elm Street 5 - Das Trauma | 1989 | |
| Writer | Der 13te Krieger | 1999 | |
| Writer | Das Mercury Puzzle | 1998 | |
| Writer | Exorzist - Der Anfang | 2004 | |
| Writer | Eraser | 1996 | |
| Writer | Operation: Broken Arrow | 1996 | |
| Writer | Hacked - Kein Leben ist sicher | 2016 | |
| Writer | Dominion: Exorzist - Der Anfang des Bösen | 2005 | |
| Writer | Pumpkinhead - Das Halloween Monster | 1988 |