Christian Metz is best known for applying Saussurean theories of semiology to film analysis. In the 1970s, he used Sigmund Freud's psychology and Jacques Lacan's mirror theory to explain the popularity of cinema. In this final book, Metz uses the concept of enunciation to articulate how films "speak" and explore where this communication occurs, offering critical direction for theorists who struggle with the phenomena of new media.