When it comes to Zombie films, you have to hit up the Grandfather of Zombies, George A. Romero. He is the creator of the modern zombie. Personally I believe the best Zombie film out there is either "Night of the Living Dead" or the original "Dawn of the Dead." I'd also like to add that "28 Days Later" is a pseudo zombie film. Zombies can't run, and in "28 Days Later" it's just a virus that makes you go crazy, called the "Rage Virus." I don't even think they're undead.