This film is incredibly frustrating; it makes us question why characters act the way they do-why they make slow decisions, why they trust strangers, and so on. Perhaps we've been watching too many films with a 7 rating that ultimately feel hollow, like "Civil War," which I couldn't sit through. This film portrays human psychology in a very raw manner, showing both the weak and the strong as a result of their circumstances, rather than presenting them as superheroes capable of anything. It's an extraordinarily good film; frustratingly good, in fact.
All the actors perform very naturally-nothing feels exaggerated or lacking. The characters include the annoying mother, the father, the bothersome son, and the selfish daughter, all depicted in a way that feels very real. The characters' foolishness and innocence are portrayed effectively, and the complex theories of destruction are simplified. The ending is just how it should be. Where else could it have gone? To something like "The Walking Dead"? Surely not.
Did the film make you frustrated? It did for me too. Yet, despite that frustration, we all stayed until the end. I would still say it's a great film and deserves a high rating.