"City of the Dead" aka "Horror Hotel" was the first film made by Amicus Productions, one of Hammer's most successful rivals in the 60s and 70s. At the time of this film, however, the company was known as Vulcan Productions.
Venetia Stevenson receives an "introducing" credit.
Released in the U.S. on a double bill with the West German film The Head in June 1963.
The Ravens Inn proprietress, Mrs Newless, who turns out in fact to be none other than witch Elizabeth Selwyn reincarnate, has a phonetically reversible surname that points to her true character. This is a trick frequently used in vampire film & literature.