Castle Films Presents Alfred Hitchcock
Years ago, long before DVD’s and VHS there was 8mm film. Castle Films licensed for home use, feature films, mostly from Universal Studios, sports films, cartoons, newsreels and released short 10 minute highlight reels on 8mm film. The films were sold in camera stores, department stores and by mail. Two Hitchcock films, at least that I know of were released by Castle films. Psycho and Frenzy.
Castle Films was eventually bought out by Universal and changed it name to Universal 8.