Inevitably, the scale of these movies tries to one up itself. Sure, you get the little things - soundtrack changes, upgraded visuals, the normal stuff - but eventually a movie feels as though it consciously decided "Hey, you know what? We need this bigger and better." A lot of times, this can be a bad thing for the movie, but sometimes it's not so. Can a showdown between the king of monsters and a space version of himself prove to be out of this world, or is it a small speck in the skies?