1) The document discusses notable actors, actresses, genres, and duos from 1930s Hollywood cinema. 2) It mentions Greta Garbo, Jean Harlow, Shirley Temple, Mickey Rooney, Judy Garland, and horror icons Boris Karloff and Bela Lugosi. 3) It also highlights some of the most famous pairings of the era like Fred Astaire and Ginger Rogers as well as genres such as gangster films and comedies featuring stars like Charlie Chaplin and Mae West.