 The film took almost two years to complete after original director  Edmund Purdom (qv) quit the job and Derek Ford (qv) took over  but was fired after two days. The distributors then hired  Ray Selfe (qv) to complete the direction and Al McGoohan (qv) to  rewrite parts of the script, including the original ending and the  London Dungeon sequence, and much of the footage was completely  re