Matt Smith filmed his scenes during his break away from playing The Doctor on Doctor Who (2005). He had to shave his head for the role of Bully and wore a wig for the last episodes of Doctor Who, which were filmed later on.
Thomas McDonald (Skip) was a real-life resident of the now sparsely populated shooting location in Detroit, Michigan.
Following this movie's mixed reception at the Cannes Film Festival, Warner Brothers considered selling the distribution rights to another company. In the end, they decided to release it on a limited platform with a simultaneous on-demand release.
Aris Costner (Marylou a.k.a. Mama Aris) is, in real-life, a nearby resident of the shooting location in Detroit, Michigan, who happened to be passing the gas station when shooting was taking place. Apparently she took a liking to Matt Smith (Bully) and the two developed the scene together.