The term 'Black Narcissus Author' refers to four people who worked together to create the 1947 British film. The first is Rumer Godden, the author of the novel on which the film was based. The second is Michael Powell, the director of the film. The third is Emeric Pressburger, the screenwriter. The fourth is Jack Cardiff, the cinematographer. The crossword solutions for these four people are KERR (4 letters), SABU (4 letters), NUNS (4 letters), and HESSE (5 letters).