First-Look Footage from ‘World War Z’ Featuring Brad Pitt and a Legion of Zombies (VIDEO)

World War Z isn't the first zombie apocalypse that has gained widespread fame and it certainly won't be the last. It's the adaptation of Max Brooks' best-selling novel of the same title, which tells the story of how a UN employee named Gerry Lane (played by Brad Pitt) saved the world from a zombie invasion.

Don't expect the zombies in World War Z to be brainless (hah!) and slow like the ones you've seen on The Walking Dead because they're crazy fast and hella scary in this war. ET has debuted a short clip featuring choice scenes from the movie, including one where Brad's trying to outrun a zombie that seems to have trained with Usain Bolt!

ET will be unveiling the full trailer tomorrow, which we'll have for you right here once it hits. Until then, check out the clip above and prepare yourself for the war that will end all wars.