American cinema has long been fascinated by jazz and jazz musicians. Yet most jazz films aren't really about jazz. Rather, as Krin Gabbard shows, they create images of racial and sexual identity, many of which have become inseparable from popular notions of the music itself. In Jammin' at the Margins, Gabbard scrutinizes these films, exploring the fundamental obsessions that American culture has brought to jazz in the cinema. Gabbard's...