For years, The Weather has been the go-to topic for nervously discussing with your co-workers whenever you end up sharing an elevator with them after you fail to see them pull into the parking lot at the same time as you, leaving you unable to adjust your route on the fly.  "Some weather we're having" you'll say, and they will grunt their assent.  A few seconds later you'll notice that neither of you have pressed the floor button, and you'll lunge for it at the same time, then retract your fingers cautiously, before finally poking it with a vigor that instantly seems inappropriately emphatic.  It would probably be less socially awkward for you to just kill and eat the co-worker right there, but instead, you chat about the weather.  God forbid they end up leaving at the same time as you that afternoon.

Yes, The Weather has been discussed to death. And yet somehow, Whatever the Weather manages to bring a fresh new angle to the topic.  Of course, in order to find a fresh, new angle, they just made up some crazy analogy regarding weather and hats.  You're not really even sure it was intentional until they hamfistedly try to tie it together in the final seconds.  M. Night Shyamalan movies operate under the same principal.