Based on the novel "Arkansas," written by John Brandon, published by McSweeney's Rectangulars in 2009.
Director, writer and actor Clark Duke is originally from Arkansas.
Clark Duke wears a different professional wrestling T-shirt for each day.
Centerfolds, the stripclub they drive by during the first half of the movie, is actually a real location in Hot Springs, AR. The scene was filmed on-location.
The Flaming Lips appear in the film (as well as performing multiple songs on the soundtrack). They are in a bar scene early on (Wayne wears an eye patch) covering the George Jones song "He Stopped Loving Her Today."