You've definitely heard of them. Perhaps you've seen one before. Maybe you even have one tucked away for safe keeping. But how much do you really know about two dollar bills? In this comprehensive guide based on the film The Two Dollar Bill Documentary, you'll learn more than you can imagine about this misunderstood currency; its history, superstitions, mystique, travels into space and even some amazing stories surrounding the bill's use. Take an entertaining journey inside the "deuce". It's two times the knowledge and two times the fun.