The cattle prod was designed and built by the actor playing Booth. The production team still doesn't know exactly how he made it.
Writer Joel Rook was wounded during shooting by a shard of mason jar glass that required over ten stitches. . .some stitches were in the muscle itself.
Actor David Link had to endure ice cold water being thrown in his face on a 40 degree day.
Actress Regina Choate, playing a meth cook, offered to do the scene in her underwear.
The owner of the crashed truck in the opening sequence had to drive his truck into a tree multiple times to get the scene right.