Damien: Omen 2 (1978)
This sequel to The Omen has been ripped apart by nearly every critic, both horror-specific and mainstream, and unfairly so. Yes, the element of suspense is nonexistent. Yes, you know exactly who's going to die and when. In that respect, it's like a Satanic Friday the 13th. However, it has one or two other things going for it that put it head and shoulders above the lame 80s slasher.
It's been 7 years since the first movie (though, curiously, it still appears to be the late 70s), and Damien Thorn has grown into a teenager. His uncle (William Holden) is now his guardian, and he attends military school under the watchful eye of (the always excellent) Lance Henriksen. His fate is, of course, planned for him. He's the Antichrist, and anybody standing in the way of his plans for world domination is in for an untimely demise.
Holden and Henriksen both do fine work here, as does Jonathan Scott-Taylor, who is effectively chilling as the cold-hearted Son of Satan. The acting carries the film when the plotting and direction fail. Everyone is giving 100%, as if they all know that they are the saving grace of the film. In the end, I cared for the characters, even if I knew that they were all "unfortunate accident by way of the Devil"-bait. That, and a few really creative death sequences, are the main reason to watch. A good rental if ya wanna see the set of movies.