There’s some incorrect info there. I commented on the video, but may as well cross-post here:

Great video, but I have to point out that your info on movie money is pretty inaccurate. The size thing is accurate if using real currency images... and if using actual real money, they can only show one side. But productions VERY RARELY use real currency. Typically, they create money that appears real if not seen up-close, but which is very obviously not real if you were to get your hands on it. In fact, I just remembered that I have a fake $10,000 stack from a movie I worked on... It actually looks fairly close to a $100 bill, but it’s got a weird, smirky picture of Ben Franklin (It says “Beaumont” under the portrait), An incorrect format for the serial number and twice on the front says that it is for motion picture use only. And once on the back, under which is says “In Him We Trust.” It’s overall nowhere near as detailed as a real bill. For the $10,000 stack, the front and back bills are printed and the rest are blank, but this is just because each printed bill typically costs $0.50 from a prop house. This came from a stack representing $40,000,000. Gets expensive. I’ve also seen them done similarly but with the extra step of leaving the place where a cash strap would cover blank, as it would never be seen if it was strapped into stacks.