Drehbuchautor bei
| 1997 | Trucks - Out of Control | ||
| 1993 | Tod der Mannequins | ||
| 1991 | Omen IV -Das Erwachen | ||
| 1991 | What Ever Happened to Baby Jane? | ||
| 1988 | Poltergeist III -Die dunkle Seite des Bösen | ||
| 1987 | Wanted: Dead or Alive | ||
| 1985 | The New Kids | ||
| 1984 | V: The Final Battle - Part 3 | ||
| 1984 | V: The Final Battle - Part 1 | ||
| 1984 | V: The Final Battle - Part 2 | ||
| 1983 | Unheimliche Begegnung | ||
| 1982 | Visiting Hours | ||
| 1977 | The Spell | ||
| 1974 | The Mark of Zorro | ||
| 1900 | Dangerous Passion |