THE JAZZ SINGER (1927) is a landmark of American cinema: it was the first full-length Hollywood feature film in which dialogue was spoken as part of the film’s action. Eddie Cantor turned down the lead role, which instead went to Al Jolson. In his most famous performance, he introduced one song with the words: “Wait a minute, wait a minute. You ain’t heard nothin’ yet!” In 1996, The Jazz Singer, which won an Oscar for production, was selected for preservation in the US Library of Congress’s National Film Registry of “culturally, historically or aesthetically significant” motion pictures. Al Jolson, who died on 23 October 1950, is seen above with May McAvoy.