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
Daphne du Maurier few people her own unique slant on her sexuality: her personality comprised two distinct people – the loving wife and mother (the side she showed to the world); and the lover (a "decidedly male energy") hidden from virtually everyone and the power behind her artistic creativity. According to Forster's biography, du Maurier believed the "male energy" propelled her writing. Forster wrote that du Maurier's denial of her bisexuality unveiled a "homophobic" fear of her true nature. The children of both du Maurier and Gertrude Lawrence have objected strongly to the suggestions about their mothers. Lawrence's daughter Pamela Cahan Clatworthy, who