What does the Z stand for in Brad Pitt's 2013 movie World War Z?

In the 2013 movie World War Z, Brad pitt stars as a former UN investigator trying to survive in the zombie apocalypse. Based on a novel by Max Brooks, the son of Mel Brooks, the film ended up as the highest-grossing zombie movie in Hollywood history.

Asked by Ben Jenkins · Last updated 2 years ago · 2.2K views