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
Alfred Hitchcock for the CIA. During its opening two-week run at Radio City Music Hall, the film grossed $404,056 (), setting a record in that theatre's non-holiday gross. "Time" magazine called the film "smoothly troweled and thoroughly entertaining". "Psycho" (1960) is arguably Hitchcock's best-known film. Based on Robert Bloch's novel "Psycho" (1959), which was inspired by the case of Ed Gein, the film was produced on a constrained budget of $800,000 () and shot in black-and-white on a spare set using crew members from "Alfred Hitchcock Presents". The unprecedented violence of the shower scene, the early death of the heroine, and the