This modern style, like the nation in which it developed, was pluralist and populist. It drew from aspects of the old world and new, "high" and "low", theatrical and social dance forms, creating new sites for dance from the living room to the street. A definitive ingredient was the freer more informal movement and behavior of their jazz-age generation, which fit with song lyrics that poeticized slangy American English. The Gershwins, Rodgers and Hart, and others wrote not only songs but extended dance-driven scores tailored to their choreography, giving a new prominence to the choreographer and dancer-actor. This book discuss how these choreographers collaborated with directors like Vincente Minnelli and Stanley Donen and cinematographers like Gregg Toland, musicians, dancers, designers and technicians to synergize music and moving image in new ways. Eventually, concepts and visual-musical devices derived from dance-making would give entire films the rhythmic flow and feeling of dance. Dancing Americans came to be seen around the world as archetypal embodiments of the free-spirited optimism and energy of America itself.