Pam Tippet, the granddaughter of Edna "Rabbits" Murray, assisted with Ina Marie Smith's development of the character.
Daniel Johns, the owner of the Little Bohemia Lodge where Dillinger and his gang infamously faced Melvin Purvis and his men in a bloody shootout, has been assisting with the development of the film.
Screenwriter Jonas Alexander incorporated J. Edgar Hoover into the narrative, despite him not being present in King's short story.
The film is the first dollar baby of the story and the first ever screen adaptation of "The Death of Jack Hamilton".