The document discusses cultural changes that occurred in the United States during the 1920s. Prosperity led to a shift away from traditional values of thrift towards consumerism. Mass production of goods and the rise of advertising fueled this consumer culture. The movie industry also helped reshape morality as films depicted lifestyles and behaviors that challenged traditional values. By the late 1920s, movies had become a dominant form of mass entertainment and cultural influence, exposing audiences to new ideas about issues like sexuality and race relations. Jazz music similarly rose in popularity during this decade as another American cultural form that symbolized modernization for some and challenged morality for others.