I always find these articles and information interesting and thought some of our members may also. https://www.cnn.com/style/article/rjr-props-fake-money/index.html
Super interesting. Less interesting when you are at a stop light, look down out of your window and see a $100 bill on the ground, jump out to grab it, get back into the car and give it to your wife, only for her to realize you got punked! lol Speaking from experience... Here's my movie money:
Smug because he tricked me. Man, I was so excited to have found a $100 bill! My wife has found a couple of $20 bills before. I thought I finally beat her. NOPE!
We have had some people in my area actually pass movie money off as real (usually the lower denominations of movie money like $20's and $10's), when the cashiers are only glancing at the denominations when they were busy. The movie money is very real looking, just have to take the time and read the print.