1993

… Screenplay … Story

1988

… Characters

1985

… Writer

1984		What Waits Below … Screenplay
1984		Angel … Writer

1983

… Screenplay

1982

… Writer

1980

… Screenplay

1973

… Adaptation

1970		Like Mother Like Daughter … Writer
1970		The Psycho Lover … Screenplay

1985

… Director

1984

… Director

1976

… Director

1973

… Director

1970		Blood Mania … Director
1970		Like Mother Like Daughter … Director
1970		The Psycho Lover … Director

2021

… Associate Producer

1985

… Executive Producer

1970

… Production Supervisor

1969

… Producer

2014

as Peter Post

1997

1956

as Capt. Hank Godowski

1969

… Creature Design