Alfred Hitchcock wrote in 1982: "The Hitchcock touch had four hands, and two were Alma's." Hitchcock began work on his tenth film, "Blackmail" (1929), when its production company, British International Pictures (BIP), converted its Elstree studios to sound. The film was the first British ""; it followed the first American sound feature film, "The Jazz Singer" (1927). "Blackmail" began the Hitchcock tradition of using famous landmarks as a backdrop for suspense sequences, with the climax taking place on the dome of the British Museum. It also features one of his longest cameo appearances, which shows him being bothered by a small boy
Alfred Hitchcock molest Marnie—Marnie had killed the client to save her mother. Cured of her fears when she remembers what happened, she decides to stay with Mark. No longer speaking to her because she had rebuffed him, Hitchcock apparently referred to Hedren throughout as "the girl" rather than by name. He told Robert Burks, the cinematographer, that the camera had to be placed as close as possible to Hedren when he filmed her face. Evan Hunter, the screenwriter of "The Birds" who was writing "Marnie" too, explained to Hitchcock that, if Mark loved Marnie, he would comfort her, not rape her. Hitchcock