The Birth of a Nation (1915) remains the most controversial American film ever made, and its director, D. W. Griffith, one of the most extraordinary figures in film history. It was the first true feature film and did more than any other to launch Hollywood both as an industry and as an idea. The film consolidated a trend in cinematic technique and an approach to dramatic narrative that define American cinema to this day. As a great but ideologically troubled film that offers us a reflection of ourselves as Americans,

The Birth of a Nation continues to intrigue, challenge, infuriate, and...