7. Theres No Vaccine/Cure
One of the more horrifying aspects of World War Z in book form was that there was no way you could protect yourself against the zombie virus. It didnt have a vaccine and it didnt have a cure, which meant it could just spread unchecked. Really, thats the most horrifying thing about zombies they just get exponentially larger until theres nothing left. Humanity is supposed to feel helpless against that, and so it proved throughout much of the films run-time. But then Gerry discovered a vaccine and the whole dynamic changed. Simply put, its not a World War anymore. The humans have the equivalent of zombie kryptonite, an absolute game changer which will make the problem less about active warfare and more about pest control. If the enemy cant see you, theres no way you can call that a fair fight. Seriously, where are they going to go from here in the now green-lit sequel? Once you take away a zombies ability to hunt and turn humans, what use are they? Theyre just a big, stupid bag of bones. It would be more of threat fighting monkeys, as at least they could see you. Effectively, theyve robbed themselves of any meaningful drama in the second instalment. The books major strength was explaining in great detail the creative ways in which the world got around the problem of the undead on their doorstep, but with a one-size cure-all that tension will be lost if a character is threatened, we wont wonder how theyre going to get out of this, well ask why they hadnt had their vaccines. That shouldnt be the case in an action film.