Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | O Exterminador do Futuro 2: O Julgamento Final | 1991 | |
| Writer | O Exterminador do Futuro | 1984 | |
| Writer | Duro de Matar 3: A Vingança | 1995 | |
| Writer | Duro de Matar 4.0 | 2007 | |
| Writer | O Juiz | 1995 | |
| Writer | A Hora do Pesadelo 5: O Maior Horror de Freddy | 1989 | |
| Writer | The 13th Warrior | 1999 | |
| Writer | Mercury Rising | 1998 | |
| Writer | Exorcista: O Início | 2004 | |
| Writer | Queima de Arquivo | 1996 | |
| Writer | Broken Arrow | 1996 | |
| Writer | I.T. | 2016 | |
| Writer | Dominion: Prequel to the Exorcist | 2005 | |
| Writer | Pumpkinhead | 1988 |