With Django Unchained, Quentin Tarantino has brought off a perfect marriage of style and history, says Kurt Loder. He has appropriated the universe of another beloved genre, the spaghetti western, and set within it an unsparing tale of American slavery. The movie is outrageously funny, but it’s also unflinchingly committed to a full exploration of the horrors of its subject. Where many movies about black bondage are diluted by liberal hankie-wringing, this one feels fueled by a black rage that still simmers today. It might be the most savage cinematic depiction of slavery ever made.