Screamtime
1983 • Director
Mark of the Devil
1970 • Director
Horror House
1969 • Director
The Image
Lifeforce
1985 • Screenplay
House of the Long Shadows
1983 • Screenplay
Return of the Saint
1978 - 1979 • Story
The Professionals
1977 - 1983 • Writer
The Black Panther
1977 • Screenplay
Adventures of a Private Eye
It Could Happen to You
1976 • Writer
Eskimo Nell
1975 • Writer
Mark of the Devil Part II
1973 • Writer
1970 • Writer
1969 • Screenplay
Electric Boogaloo: The Wild, Untold Story of Cannon Films
2014 • Self - Writer
House of the Long Shadows... Revisited
2012
Adventures of a Taxi Driver
1976 • Customer
Three for All
1975 • Sylvester
1975 • Dennis Morrison
