References include "The Walking Dead", "Warm Bodies", " Zombieland," "Shaun of the Dead", and "World War Z."
In the zombie strip club scene, Shaun and Ed, spoof of Shaun of the Dead, are the two guys watching.
Sheriff Lincoln is a play on the name of Walking Dead actor, Andrew Lincoln, who plays Sheriff Grimes.
Throughout the movie, characters keep mishearing Romeo's name as "Romero". This is a reference to George Romero, director of the original Night of the Living Dead.
The mall, Wonderland of the Americas, is in San Antonio, Texas.