The clip you've likely seen:
Why you should watch the rest: This movie is 90% flashback to the first installment and 10% original content following the younger brother of the original killer who's awaiting trial for his own murder spree.
What you should know before you watch: If you're going to watch a Silent Night, Deadly Night movie watch either 1 or 2, or put some space between viewing both of them. (We watched them back to back one December and it was pretty hard to get through. Seriously, if you insist on watching both, put a decent amount of time between viewings.)
Never hear this word the same way again: Naughty!