"Spellbound" was made over contract disagreements between Alfred Hitchcock and producer David O. Selznick. Hitchcock's contract with Selznick began in March 1939, but only resulted in three films, "Spellbound", "Rebecca" (1940) and "The Paradine Case" (1947). ("Notorious" was sold to RKO in mid-production.) Selznick wanted Hitchcock to make a movie based upon Selznick's own positive experience with psychoanalysis. Selznick even brought in his therapist, May Romm, MD, who was credited in the film as a technical adviser. Dr. Romm and Hitchcock clashed frequently.