Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Robocop | 2014 | |
| Writer | RoboCop | 1987 | |
| Producer | RoboCop | 1987 | |
| Writer | Starship Troopers | 1997 | |
| Producer | Starship Troopers | 1997 | |
| Writer | RoboCop 2 | 1990 | |
| Writer | Anacondas - Die Jagd nach der Blutorchidee | 2004 | |
| Writer | RoboCop 3 | 1993 | |
| Writer | Starship Troopers 2: Held der Föderation | 2004 | |
| Director | Starship Troopers 3: Marauder | 2008 | |
| Writer | Starship Troopers 3: Marauder | 2008 | |
| Writer | Starship Troopers: Traitor of Mars | 2017 | |
| Producer | Starship Troopers: Invasion | 2012 | |
| Writer | RoboCop Returns | ||
| Producer | RoboCop Returns |