 One role which was not given to a future regular was that of Major Boothroyd, the head of Q-Branch, which was given to Peter Burton.Burton was unavailable for the subsequent film, "From Russia with Love", and the role was taken by Desmond Llewelyn.Anthony Dawson, who played Professor Dent, met director Terence Young when he was working as a stage actor in London, but by the time of the film's shooting Dawson was working as a pilot and crop duster in Jamaica.