The thing is, zombie movies have to be at least a little bit interested in, you know, the living dead — and World War Z is deeply uninterested in its MacGuffin. The film fails to offer a consistent logic of how the undead infection spreads. No major character turns into a flesh-eating ghoul. Indeed, these zombies don’t seem all that interested in eating people. Mostly, they cock their heads violently, emit odd noises, and try to break through glass windows. In other words, they act and sound like angry birds — and not the fun, addictive kind either.

Of course, what’s really interesting about zombie films is how humans react to the living dead. Usually, the misanthropic answer is “not well.” Early on, World War Z has a looting scene that touches on these issues, with people brandishing guns to secure supplies and attacking other humans — but that passes quickly. After that, practically every character with a speaking part acts in a noble, forthright, and earnest manner. There’s very little in the way of humans displaying greed, malevolence, or stupidity in World War Z, which is what makes the zombie genre so misanthropic. Liberal internationalists who value the United Nations or World Health Organization (WHO) will find the movie uplifting — especially when you see the U.N. and U.S. flags flying next to each other in the “U.N. Atlantic Fleet,” according to the film. Unfortunately, such a heavy dose of do-gooding leeches the narrative of any compelling conflict. As the film progressed, the only drama I felt was whether Mireille Enos could get through a scene without pursing her lips in a disapproving manner.