There are multiple premises baked into the DNA of 10 Cloverfield Lane, and they are all significant enough to stand on their own. So the success of this film could be due to at least one of the films within it working so well or due to the confluence of all of them making for just the right formula. To best determine that answer, there ought to be an experiment breaking up this clever sequel into its constituent parts, with a control movie serving as the most bare-bones version. Perhaps there could be one sub-version of each with John Goodman, and one without, though that is unnecessary because he is clearly a national treasure.