Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good, but the ending sank it.

This movie turned out to be nothing like what I expected. The directors do an excellent job of capturing the feel of a PBS-style documentary, and the atmosphere is suitably creepy. The ending, however, really put me off. The first hour and a quarter is in documentary format, then it switches to third person, and what is revealed by this removes all sense from the movie. If that is indeed the case, then why would the documentary have even been made, and why analyze the lost tapes? Mind you, I don't mind being suckered by the directors, but this was too cheesy.