BASED ON A TRUE STORY, SHOT IN A REAL THAI PRISON, JEAN STÈPHANE SAUVAIRE'S FEROCIOUS FILM A PRAYER BEFORE DAWN DEBUTS FIRST TRAILER A Prayer Before Dawn premiered to exceptional reviews at the Cannes Film Festival earlier this year. A Prayer Before Dawn is the remarkable true story of Billy Moore, a young English boxer incarcerated in two of Thailand’s most notorious prisons. He is quickly thrown into a terrifying world of drugs and gang violence, but when the prison authorities allow him to take part in the Muay Thai boxing tournaments, he realizes this might be his chance to get out. Billy embarks on a relentless, action-packed journey from one savage fight to the next, stopping at nothing to do whatever he must to preserve his life and regain his freedom. Shot in a an actual Thai prison with a cast of primarily real inmates, A Prayer Before Dawn is a visceral, thrilling journey through an unforgettable hell on earth. Discuss this with fellow SJF fans on Facebook .