A movie featuring a group (Zombies) who, by some
transmitable cause, infect others or kill them. In most zombie movies the zombies also eat the living. Some movies can be debated to be zombie movies like "Invasion of the Body Snatchers." Many zombie movies have been deemed ridiculous in recent years because of the remakes of "Dawn of the Dead" and the
Zomedy "Shaun of the Dead." It could be argued that zombie movies became ridiculous after countless
grindhouse flicks during the 70s, and specifically the "Evil Dead" films. The cause of zombies in each film is different, usually pertaining to the era the film was made in. "Night of the Living Dead" was radiation, and during the Cold War the threat of radiation by the atomic bomb was a serious concern. In a more modern setting "
28 weeks later" the zombies have virus, much like modern biochemical weapons.