Although now he’s best-known for his four witty Gothic horror movies – Frankenstein, The Old Dark House, The Invisible Man and Bride of Frankenstein – Show Boat (1936) is arguably James Whale’s crowning achievement as a filmmaker. One of the decade’s great musicals, it is also one of the most complex and nuanced treatments of race and its impact on American culture produced at the height of Hollywood’s studio era. Criterion’s Blu-ray does full justice to the film’s intrinsic qualities and historical importance.