I haven’t seen this movie since it was in theaters, and remain highly frustrated by the ending. It’s the sort of thing where they say, “Sure, this violates EVERYTHING we’ve been explaining up to now, but it’s cool, so nobody will care.” And they were 95% right, worse to say. Most people didn’t care. (Thus the difference between being a film nerd and being a member of the general public.)
Even so, despite that climax pretty near ruining the movie for me, I can’t say the film doesn’t offer up two or three really, really good scares.