In this story of the three important decades of Lee de Forest, it is his inventions of the vacuum tube and the radio that will make the talking picture possible. But this is not just the story of one inventor or a single invention. It is about many interesting and influential people and how they transformed Nineteenth Century science into Twentieth Century art. In this story of invention the film is shown to evolve from a chemical process into entertainment, and wireless telegraphy into radio broadcasting. Lee de Forest puts it all together and creates the sound motion picture. While this story concentrates on the decade of the 1920s and talking pictures, it is also about the creation of the electronic entertainment media and its audiences.