Texas

1980 · Writer

Battle for the Planet of the Apes

1973 · Writer

The Omega Man

1971 · Writer

The Arena

1974 · Writer

Boxcar Bertha

1972 · Writer

Von Richthofen and Brown

1971 · Writer

Killer Bees

1974 · Writer

The Arena

2001 · Writer

Nightfall

2000 · Writer