Two thrilling remakes of Alfred Hitchcock classics. In "The Lady Vanishes" (Angela Lansbury, Elliott Gould, Cybill Shepherd. 1975/95 min), an American woman befriends an elderly traveler on a sleeper train departing from Germany, and is then told the woman never existed after she disappears. In "The Thirty Nine Steps" (Robert Powell. John Mills. 1978/102 min), also based on the classic novel by John Buchan, in 1914 London a British intelligence officer must trust a stranger with his secrets after he realizes German spies are on his tail. 2 DVDs. Color/PG/widescreen.