Escaping from a posse, Cole Younger (Wayne Morris) is shot and wounded in the shoulder. There is no visible sign (bloodstain etc). Later, he peels back his shirt to reveal a blood stained undervest but neither the shirt or undervest has a bullethole.
Cole throws a match onto the hay wagon and it instantly bursts into flames. In a subsequent shot, the fire is burning in two separate areas even though he only throws one match before riding away.
Although set in Minnesota, all the vegetation and geography are all Southern California.