One thing I thought was genius about this movie was that there is a clear difference between the regular fun Tarantino violence and anything to do with slavery, which has a totally distinct, horrific tone.
Agreed. The violence against slaves in the film was never portrayed as funny in any way, as opposed to the violence towards non-slaves, which was comical at times:
-Schultz saying, "Auf Wiedersehen," a split second before firing on the KKK.
-Moguy getting repeatedly shot by errant bullets during the shootout in the big house
-Stephen's profanity-laced tirade at the end moments before Django blew him and the house to smithereens (Stephen was an Uncle Tom, not really a slave)
DiCaprio was always my favorite performance in this movie. I think mostly because its so against what one expected from him, and it was just surprising to see him as a completely disgusting human being. And he really gave it his all.
He was really good, yes, and the role was definitely a departure for him, but to me, he just can't get any higher than 3rd place for best performance in this movie since Waltz and Jackson are 1a and 1b by such a large margin, IMO.