If you ever want an object lesson in the things that make a good movie vs. the things that make a bad movie, you could do worse than make a study of the remake of Poltergeist (2015, directed by Gil Keanan). In its broad outlines, the remake is essentially the same damned movie, but where the original was a film that was fun and scary and inhabited by real people in a palpably real place, the remake is just...tired. I never really thought of the original Poltergeist as a foundational horror film, but damned if the remake doesn't wind up putting the original into perspective as one of the most influential films of its era. Any comparison is likely to favor the original film if the original is good enough to inspire a remake, but the fact that the remake completely craps the bed all on its own doesn't help things.