Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Terminator 2: El juicio final | 1991 | |
| Writer | Terminator | 1984 | |
| Writer | Jungla de cristal: La venganza | 1995 | |
| Writer | La jungla 4.0 | 2007 | |
| Writer | Juez Dredd | 1995 | |
| Writer | Pesadilla en Elm Street 5: El niño de los sueños | 1989 | |
| Writer | El guerrero nº 13 | 1999 | |
| Writer | Mercury Rising (Al rojo vivo) | 1998 | |
| Writer | El exorcista: El comienzo | 2004 | |
| Writer | Eraser (Eliminador) | 1996 | |
| Writer | Broken Arrow: Alarma nuclear | 1996 | |
| Writer | Amenazados en la red | 2016 | |
| Writer | El exorcista: El comienzo. La versión prohibida | 2005 | |
| Writer | Pacto de sangre | 1988 |