It's a good movie, well worth watching, but facts do sort of spoil it. Funny thing is this film seems to say that prison or death row is truly reformative. Our hero / villain starts off as an ugly, mean, vicious redneck white trash, who is transformed into attractive, handsome good old country boy. The brutal, sadistic prison guards become caring, sensitive wardens, what better advert for incarceration. Then a basic fact, if a propellant is found that's the primary cause, not the reactions causing flash. Many would be heroes have actually found themselves in the same situation and had to face the consequences, don't play with fire.