Dawn of the Dead (1978 film)/Nightmare Fuel

Once the illusion of the mall's consumer paradise fades away, you realise that you're trapped in there... forever....

From the 1978 film:

 * The original is actually worse with this with Gorn levels of violence.
 * The racist cop in the raid running amok killing off random refugees with reckless glee before getting gunned down. We're treated to an extreme close-up of one of his victims.
 * A biker trying to use the heart-rate monitor machine gets his arm ripped off by a swarm of zombies surrounding him.
 * The original ending would have had.

From the 2004 film
""You're going to kill my family?""
 * A particularly effective bit:


 * The zombified baby itself, though YMMV.
 * The obese woman, even before she's zombified.