Warner Brothers looks back to the early days of talking pictures. Dwight Weist narrates film clips from five movies: "Sinner's Holiday," introducing James Cagney with a glimpse of Joan Blondell, "20,000 Years in Sing Sing," with a young Spencer Tracy and a younger Bette Davis, "Five Star Final," with Edward G. Robinson and a cameo from Boris Karloff, "Night Nurse," starring Barbara Stanwyck with a small role for Clark Gable, and "Svengali," with John Barrymore and Marian Marsh. Each movie is sum...