This is the story of convicted murderer David Marshall Williams who invented the M-1 carbine rifle that was used in WW11. This is James Stewart at his laid back, laconic best.However he injects a darker side to his role as a moonshiner,wrongly or rightly accused of killing a federal Marshall.His innocence or lack of it was neatly sidestepped as this is the story of his invention not of his crime. For modern films viewers the prison scenes may seem slightly twee and a bit too clean cut compared to modern prison classics such as The Shawshank Redemption and the Green Mile but some scenes really pack a punch they include a man being whipped and James Stewert in solitary confinement for differences with the prison warden. Jean Hagen does well in a supporting role as his wife who promises to wait for her husband till he completes his 30 year prison sentence. This film also has moments of great beauty the foremost being David M Williams being let out of jail for 24 hours to visit his wife.He is trying to get his wife to divorce him and she says, "without you I am only half a person,you are my other half".Priceless. This may not be considered by many to be a classic movie but it is certainly a very satisfying one that gives you a warm feeling inside at the end. Thank you TCM for showing another golden oldie.8/10