Joan Harrison (screenwriter) the film "Jamaica Inn" (1939) based on the novel by Daphne du Maurier. When Hitchcock moved to Hollywood in March 1939 to begin his contract with David O. Selznick to direct films, Harrison went with him as an assistant and writer. She continued contributing to the screenplays for Hitchcock's films "Rebecca" (1940), also adapted from a du Maurier novel, "Foreign Correspondent" (1940), "Suspicion" (1941), and "Saboteur" (1942). She was also credited as one of the screenwriters for "Dark Waters" (1944). Harrison was an uncredited screenwriter for "Ride the Pink Horse" (1947) and "Your Witness" (1950). She became a film producer
Philip MacDonald and Michael Hogan adapted the novel "Rebecca" by Daphne du Maurier, from which Robert E. Sherwood and Joan Harrison created the screenplay for "Rebecca", the 1940 film. Sherwood and Harrison were nominated for an Academy Award. In later years MacDonald wrote television scripts for "Alfred Hitchcock Presents" ("Malice Domestic", 1957) and "Perry Mason" ("The Case of the Terrified Typist", 1958). His novel "Patrol" was issued as one of the first twenty Penguin Books, and, as "W.J. Stuart", he wrote the novelisation of the 1956 science fiction film "Forbidden Planet". MacDonald also infrequently dabbled in science fiction under his own name,