Despite the film stating that it is based on a true story, the film is actually very loosely connected to the real life story. Ralph Sepe Jr. stated that he exaggerated the story on purpose to emphasize Glenn's capacity to manipulate the truth which is a major theme in the film.
Most of Brian's lines (played by Greg Scavelli) were improvised and were heavily edited in post production.
Ralph Sepe Jr. got the idea for the film from his friend while eating at a La Bottega. He gives him special thanks in the credits.