A week after writing the script, Marco injured himself in the same place his character does in the script.
Azrael and Spartacus having a different haircut in the movie and on the poster is a homage to the "Scream" (1996) poster.
Originally, Azrael was supposed to have steak dinners rationed out until he ran out of money. Due to time restraints, Marco changed it to them having leftover Halloween candy and bread rationed.
In the middle of filming, Marco's historic 1860s' house at 777 Hilltop Road, Xenia, Ohio, and primary set for the film, was stolen from him by an evil, greedy development company so they could tear it down and build an unnecessary housing development (nicknamed Bonehill Village). Despite losing his main set Marco worked it into the script, using his new home as an alternate version of the same room.
It took 493 days and over 40,000 actresses to find the one playing Amy Bittle.