Quiz

Jon Bernthal's character; Shotgun, has a tattoo on his neck that says PEN1. It stands for Public Enemy No. 1. PEN1 is a white street gang from Orange County California.

These are some of the books that can be seen in Money's prison cell:

• The Book of Five Rings by Miyamoto Musashi
• The Art of War by Sun-Tzu
• Holy Bible, New King James Version
• The Selected Works of Nietzsche
• The Prince by Niccolo Machiavelli
• Deep Black: Jihad by Stephen Coonts
• For Whom the Bell Tolls by Ernest Hemingway
• Aztec Revenge by Gary Jennings and Junius Podrug
• Of Mind and Matter (possibly a fictitious book)
• The Human Animal by Kieran Sequoia.

There is no such book by Kieran Sequoia (who is the movie's production assistant). However there is a book with the same title by Desmond Morris, an English zoologist and ethologist, whose writings deal with psychology, evolution, human customs and behavior as compared to animal behavior in the wild and in captivity and thus is in line with the book that The Beast recommended to Money.

The "Beast" character is loosely based on white supremacist; Stephen Cingel.

The prison where Money and The Beast are locked is Corcoran, the same prison as Felon, the other prison film from director Ric Roman Waugh.

Jacob's cell number is 13, which is also his hotel room number when his son comes to visit.