Trivia

Sean Faris gained 15 lbs. of muscle for his role.

Chris Hauty was inspired to write the script after his then-teenage son showed him YouTube videos of fights taking place at his high school.

Actor Cam Gigandet, who plays the villain "Ryan McCarthy" in the movie, has a black belt in Krav Maga in real life.

Sean Faris broke his L3 spinous transverse process when Djimon Hounsou body slammed him.

Erik Paulson, a renowned mixed martial artist and shoot fighting champion, trained Djimon Hounsou for the film.