Though it's a zombie apocalypse film, it is very beautiful. The root message is actually sacrifice for your near and dear ones. There is emotion as well, especially when the father, while saving his daughter, turns into a zombie himself, and at the same time, in his last moments he's recollecting the time when he first held his daughter; basically the message is highlighted more towards the end, and then the daughter sings in the memory of her father's honour and courage....it's just mind-blowing and wonderful. And no doubt about the fact that it is known worldwide, it deserves it.