Known for
Filmography
Evolution
EN · 20016.1
Screenplay
Vampires
EN · 19986.3
Screenplay
Double Team
EN · 19975.3
Screenplay, Producer
Philadelphia Experiment II
EN · 19935.2
Characters
Arachnophobia
EN · 19906.5
Screenplay, Co-Producer, Story
Invaders from Mars
EN · 19865.6
Screenplay
Lifeforce
EN · 19856.2
Screenplay
Death Wish 3
EN · 19856.2
Writer
Blue Thunder
EN · 19836.3
Screenplay