The "good" guys are the ones who disobey military orders and sacrifice themselves in order to do the right thing -- namely avoid hurting innocent/uninfected people and preserve the only humans who might create the chance for a cure. But their altruistic actions result in more bloody death and ultimate horror. Characters lie and are selfishly motivated.
Savage, unrelenting bloody violence includes helicopter blades shredding through zombies like a giant lawnmower. A woman is beaten to death and her eyes gouged in horrific close-up. Bitings and poundings; rifle fire blows off human limbs. Huge explosions and fire bombings, with both the living and the dead set ablaze. Children are repeatedly threatened with death or injury.
A nude couple having sex is distantly glimpsed though a rifle scope. Un-erotic footage of a woman naked in a shower being scrubbed down in a decontamination process. Discussion of masturbation.
Much profanity, with frequent uses of both "f--k" and "s--t."
Some British canned-goods labels shown; posters for assorted bands.
Drinking, Drugs & Smoking
A couple prepares to drink a bottle of liquor, but they don't get around to it.