Fonzie, I *LOVE* Hammer Horror films!
I addictively collected the 'Dracula' series, and would tape various others whenever they were on TV.
Peter Cushing was one of their most regular actors, and Christopher Lee played numerous monsters and villians for them. One of his early films with them was 'The Mummy', and he was playing.... the mummy!
Hammer films were mostly filmed at Bray Studios, and the nearby Oakley Court Castle, which is best known for being used in 'The Rocky Horror Picture Show'.
Hammer made their last horror film in 1976.
There are, however, several similarly styled and cast British horror films, which were *not* made by Hammer, but by other British studios of the time.
A film which Hammer could have worked wonders with was 1975's 'Nothing But the Night', which stared Lee and Cushing, and was the only film made by Christopher Lee's production company 'Charlemagne Productions'.
Pawn Heart ~
The one with the wizards was probably 'The Raven', featuring a young Jack Nicholson!