LOCK UP YOUR DAUGHTERS was released in 1959 and classified with an X certificate by the British Board of Film Censors, permitting screening only to those persons over 16 years of age. It is doubtful that the footage of Lugosi introducing the clips from old Monogram productions, was new material. It may well have been borrowed from the earlier GLEN OR GLENDA. This 50 minute offering, marketed as the first film quiz, had selected bookings in the flea-pits around London, including the Grand in Camberwell ( November 1959 ), and the Empire in Staines Middlesex. The film was made by the E J Fancey Organisation and released by New Realm Pictures, one of the company's distribution outlets, which also included DUK Films, SF Distributors, and E J Fancey Productions. Fancey had the UK theatrical rights to distribute a few of the old Lugosi pictures including LOCK YOUR DOORS ( US:The Ape Man ), CASE OF THE MISSING BRIDES ( US:The Corpse Vanishes ) and THE CORPSE VANISHED (US: Revenge of the Zombies ). This unusual oddity now appears to be a lost film. In all probability there were very few prints made, and unless a negative still exists somewhere this film will remain unavailable for reappraisal.