[3] If the inmates win sufficient amounts of fights against foreigners and have good behaviours, the Department of Corrections can reduce their sentences or even grant them a Royal pardon.

[12] Development of sports inside prisons walls is believed to minimize internal problems such as diseases, drug abuse and violent behaviour.

[10][13] The Thai Penal System has a long history of organizing sporting events, from soccer and basketball tournaments to weightlifting competitions.

[8] In an effort to modernize the penal system, Thai authorities began issuing sentence reductions to the athletes viewed as bringing honor to their country.

In 2007, the imprisoned drug dealer Siriporn Taweesuk beat a Japanese boxer for the World Boxing Council light-flyweight title in a match held at Klong Prem Prison.

[21] The film tells the story of Sean McNabb fighting Komkit Agorn Ketnawk at Klong Pai Central Prison.

[24] The film is narrated by Sons of Anarchy star Ron Perlman and aims at examining a controversial practice in Thailand’s criminal justice system.