• The UK cinema version was cut by the BBFC for an 'A' (PG) certificate and edited the eye-stabbing of the rat-catcher and shots of a hanging body, as well as extensive edits to scenes showing the creation and final unmasking of the Phantom. Later video and DVD releases were uncut.
  • A subplot involving a pair of Scotland Yard police inspectors on the trail of the Phantom was shot especially for the American TV version (by the TV companies, not by Hammer). This was a regular occurrence in this era, most notably with Hammer's films The Kiss of the Vampire (1963) and The Evil of Frankenstein (1964).