Witchcraft: The Doll in Brambles

(1961)

Adaptation

The Stately Ghosts of England

(1965)

Writer

Anzio

(1968)

Adaptation

Z.P.G.

(1972)

Writer

Trapped

(1974)

Writer

The Savage Is Loose

(1974)

Writer

Audrey Rose

(1977)

Novel and Screenplay

The Two Worlds of Jennie Logan

(1979)

Teleplay

The Entity

(1982)

Novel and Screenplay

Killer in the Mirror

(1986)

Writer

The Penthouse

(1989)

Teleplay

Scissors

(1991)

Writer

Rich and Famous

(1981)

Literary Party Guest

Hollywood Ghost Stories

(1986)

Himself

The Stately Ghosts of England

(1965)

Director

Trapped

(1974)

Director

The Two Worlds of Jennie Logan

(1979)

Director

Dark Night of the Scarecrow

(1981)

Director

Killer in the Mirror

(1986)

Director

Scissors

(1991)

Director

The Stately Ghosts of England

(1965)

Producer

Z.P.G.

(1972)

Executive Producer

Audrey Rose

(1977)

Producer