The ranch dog's named Augustus was in tribute to Robert Duvall's character, Augustus McCrae, in Lonesome Dove (1989).

Premiered in the 2015 SXSW Film Festival on March 17.

Some of the filming took place in Magna, Utah.

Much of the footage was shot in Magna, Utah.

Robert Duvall and James Franco appeared in In Dubious Battle (2016).

In the scene where the local law man meets with several gang members to order a hit on one of the Texas Rangers, the extras were originally intended to take up space in the background. However, Robert Duvall felt the scene was too awkward, and lacked authenticity, so he ended up giving some of the extras a couple of lines in the scene.