Although American films, especially Hollywood fare, are often belittled for their one-dimensional portrayal of sex, a close examination of the history of sex in American motion pictures reveals that American cinema has actually represented sex in myriad ways. A more complete understanding of the ways in which sex has been represented onscreen requires an approach that pays equal attention to cinematic techniques and to the diversity of sexual values and behaviors in American society. It is necessary to frame this discussion within the multiple contradictions of an industry that has both repressed and represented sex with equal fervor over the course of its history; of audiences that have both taken offense at and flocked to films with sexual themes; and a body politic that has regulated the sexual in popular culture even as its discourse has been saturated with sexual images and topics. The History of Sex in American Cinema moves seamlessly between general film and social history to clarify how exactly sex has been expressed cinematically, and how we have responded to those expressions as a culture.