Donald Zimbalist

John Dillinger first goes to jail after attempting to rob his girlfiriend's father at her suggestion. Falling in with the likes of Baby Face Nelson and Pretty Boy Floyd he arranges their escape and they start on an escalating series of holdups. (imdb)

Based very loosely on a story by Jules Verne, two men, about to undertake a duel, are thrust into an alternate universe. Finding themselves the only "civilized" men in a world of cavemen and savage beasts, the two realize they'll have to put aside their differences to help each other survive in this strange new world.