The team the filmmakers followed, FC Lions, won the LA City Championship during production. Footage of the championship match is used throughout the film.
The director of the film broke his ankle just after wrapping principle photography. He used pick-up shots he made of his foot in the cast in the opening sequence of the film.
Unhappy with the available camera options and the high cost, the director designed and built his own 3D camera which he used to shoot the movie.