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| Title | Year | Status | Character |
|---|
| Alienators: Evolution Continues | 2001 | Video Game characters |
| Evolution | 2001 | screenplay / story |
| Vampires | 1998 | screenplay |
| Double Team | 1997 | screenplay / story |
| Philadelphia Experiment II | 1993 | characters |
| Arachnophobia | 1990 | screenplay / story |
| Death Wish 3 | 1986 | Video Game original screenplay - uncredited |
| Invaders from Mars | 1986 | screenplay |
| Death Wish 3 | 1985 | written by - as Michael Edmonds |
| Lifeforce | 1985 | screenplay |
| The Philadelphia Experiment | 1984 | story by |
| Blue Thunder | TV Series story - 2 episodes, 1984 teleplay - 1 episode, 1984 |
| Blue Thunder | 1983 | written by |
