There are obvious references to the classic Creator/GeorgeARomero films as well as other films.

* Marky mockingly zombiewalks while saying [[Film/NightOfTheLivingDead1968 "They're coming to get you Barbara!"]]
* Joplin attempts to crib the [[Film/DawnOfTheDead1978 "No more room in hell"]] speech but gets brushed off.
* [[spoiler:Patrick]]'s death pays homage to [[Film/DayOfTheDead1985 Captain Rhodes]].
** There's also him running off and locking out his co-workers, much like Rhodes at the climax of Day of the Dead.
* Grayson's name may be a shout out to Grayson Perry, famous artist and crossdresser.
* There is also a shout out to the film version of ''Film/{{Misery}}'', although resident [[TheDitz ditz]] Veronica gets the title wrong.
* Also, beating the zombie's face in ("Get it in the head") is a shout out to ''Film/{{Irreversible}}''.