Comments

It's called "the Romero Effect." In the world of zombie movies, George A. Romero does not exist. He is the man who has been credited as the father of zombie movies. So, with him not existing, everyone in those movies have no idea what's going on and thats why they are referred to as " walkers" or "undead" because the word zombie has yet to be coined. There are a few exceptions to the rule such as Warm Bodies. In that book/film Romero exists because there are zombie books hidden throughout the movie and the undead are actuallu referred to as zombies.