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 release of the film "A Bridge Too Far", in which her late husband was portrayed in a less-than-flattering light. Incensed, she wrote to the national newspapers, decrying what she considered unforgivable treatment. Once out of the public spotlight, however, many remembered her as a warm and immensely funny person who was a welcoming hostess to guests at Menabilly, the house which she had leased for many years (from the Rashleigh family) in Cornwall. Du Maurier was an early member of Mebyon Kernow, a Cornish nationalist party. After her death in 1989, references were made to her reputed bisexuality; an alleged