The National Screen Service was a long-lasting company (fading away in the 1990s) that handled posters and the like for movie studios. THE HUMAN VAPOR was released in the U.S. in 1964 as the bottom half of a double bill with GORATH. But NSS records show that posters and still were prepared for VAPOR in 1962. Does anyone know if it was released anywhere in the U.S. in that year?