Black Christmas is a horrific testament to fear and paranoia, before the slasher genre predominantly became male-gazey skin flicks and sloppy gore romps. But, for those who haven't upgraded their Black Christmas DVD yet or still don’t own a copy, there’s plenty of incentive. When watching Clark's Black Christmas, you won't have to be reminded to respect your elders. Black Christmas wasn't his only release; in August, his Vietnam-era zombie flick Deathdream, aka Dead of Night, would see a modest run. However, if you’ve been holding out to add this quintessential Christmas horror flick to your collection?