Known For
Battle for the Planet of the Apes
(1973)
Screenplay
I Am Legend
(2007)
Original Film Writer
The Omega Man
(1971)
Screenplay
Boxcar Bertha
(1972)
Screenplay
The Arena
(2001)
Writer
Von Richthofen and Brown
(1971)
Writer
Killer Bees
(1974)
Writer
The Arena
(1974)
Writer
Full Filmography
Writing