Drehbuchautor bei
| 2017 | Logan - The Wolverine | ||
| 1985 | Red Sonja | ||
| 1984 | Conan der Zerstörer | ||
| 1983 | Feuer und Eis |
mitgespielt in
| 2017 | Superheroes Decoded | ||
| 2017 | Batman & Bill | ||
| 2008 | Batman and Me: A Devotion to Destiny, the Bob Kane Story | ||
| 1988 | Operation Warzone |
| 2017 | Logan - The Wolverine | ||
| 1985 | Red Sonja | ||
| 1984 | Conan der Zerstörer | ||
| 1983 | Feuer und Eis |
| 2017 | Superheroes Decoded | ||
| 2017 | Batman & Bill | ||
| 2008 | Batman and Me: A Devotion to Destiny, the Bob Kane Story | ||
| 1988 | Operation Warzone |