Made short film "Bloodbath", about a man who commits suicide in a bathtub

With John Carpenter, collaborated on a Master's thesis project, a short film "Dark Star"

Assisted Carpenter on feature length version of "Dark Star"; worked as actor, production designer, special effects technician and screenwriter

Worked on George Lucas' "Star Wars" as a computer animator

Worked on developing a feature based on Frank Herbert's sci-fi classic "Dune"; project was aborted

With Ronald Schusett, devised original story for the sci-fi hit "Alien"; wrote screenplay

First screen collaboration with Don Jakoby, co-wrote screenplay for "Blue Thunder"

With Jakoby, co-wrote script for "Lifeforce", directed by Tobe Hooper

Directorial debut, "Return of the Living Dead"; also scripted

Reteamed with Jakoby and Hooper for remake of "Invaders From Mars"

With Schusett, provided the story and served as one of the scripters of "Total Recall", adapted from a story by Philip K Dick

Directed "The Resurrected"

Co-wrote screenplay for "Screamers"; second script adapted from a Philip K Dick story