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 Mountain Eagle" (1926), released in the United States as "Fear o' God". The film is lost; Hitchcock called it "a very bad movie". Hitchcock's luck changed with his first thriller, "" (1927), about the hunt for a serial killer who, wearing a black cloak and carrying a black bag, is murdering young blonde women in London, and only on Tuesdays. A landlady suspects that her lodger is the killer, but he turns out to be innocent. To convey that footsteps were being heard from an upper floor, Hitchcock had a glass floor made so that the audience could see the