Although the DVDs included in Griffith Masterworks are available separately, they gain even greater significance in this stupendous boxed-set compilation. The title is no understatement: These four features and 30 short films comprise the crowning achievements in D.W. Griffith's pioneering legacy, spanning the director's progress from cinematic innovator (the Biograph shorts, 1909-13) to his ambitious creation of the controversial epics The Birth of a Nation (1915) and Intolerance (1916), and his mastery of the emotionally intense melodramas Broken Blossoms (1919) and Orphans of the Storm (1921). Griffith's artistic growth is evident throughout, as he moves from the static camera of the Biograph years to his groundbreaking development of cinematic grammar including close-ups, parallel editing, and mobile-camera action. The historical importance of these films has long been established; they're available here in the best available condition, carefully preserved with the illuminating perspective of history.