The new Blu-ray of THE OTHER

If you're a fan of the genre, the new Blu-ray from Twilight Time is well worth the money, even if you've never seen the film. It has an isolated score track which includes ALL the Goldsmith cues - even those not used in the finished film!
If you have seen the film, read on.
Yes, much of it is over the top, but a second viewing reveals how carefully constructed it is. Even though it's pretty easy nowadays to be ahead of the reveals (what with films like THE SIXTH SENSE keeping us on guard), there are plenty of things there to keep you from being sure of the truth. There are just a handful of shots that include both boys, and they are always pans, so while you see both boys in the same take, you still never see them sharing the frame. The very first time you see Holland, the shot has panned over from Niles, immediately establishing that there are two actors. Aunt Vee asks Niles if her son could borrow Holland's bike, as though Holland was still alive. The old lady neighbor thinks that Holland is alive, but it's established that she's balmy and doesn't even remember that the boys' father is dead.
After the scene where we finally are allowed to see that Niles is talking to an empty chair, we never see Holland again, we only hear his voice. This establishes that, a la Norman Bates, finally facing the truth has caused Niles to snap, and both personalities have become one evil crazy child.
One other observation: the scene near the end when they find the baby is one of the most horrific scenes I've ever seen. Nowadays you'd expect to actually see the body in full, but this was done with skillful direction and perfect acting by the cast - their reactions to what you DON'T see are so real and heartbreaking that you feel as though you've seen what they've seen.