In the past 30 years, Diane Keaton has been an actress, a director and a photographer. This work begins with her early years in California, but the primary focus is on her film career from the 1970s through the present. The author examines Keaton's image as star and public figure, drawing on information from interviews (including personal conversations with Keaton), feature pieces, press releases, books, photographs, posters, films, and reviews of films. Each chapter provides an overview of the significant events and influences in Keaton's life during a particular period, along with a thematic and stylistic analysis of that period's feature films, television movies, and photography. The film analyses include an examination of themes and technical elements such as cinematography, mise-en-scene, movement, editing, sound, acting, costumes, set, and narrative structures.