The Biograph Company was the most influential American film studio of its time. In 1908 D.W. Griffith, the most important filmmaker in the history of world cinema, joined the company. Until late 1913 he served as Biograph's leading director and/or production supervisor for over 800 films. This fundamental reference guide details that work. Each film is fully documented, with production information, cast, and credits. Biograph refused to release the names of its players but here, for the first time, all of those players, major and minor, are authoritatively identified. With complete cross-index.