Disney should not make problems accepting the $100 bills but be aware that many smaller stores (as well as toll booths for example) will not accept bills larger than $20 some even have a sign in the window about large bills. It might be difficult to exchange the bills here in the UK, if it's possible at all. As previously said, change bureaus will only change the currency they sold, with original receipt. And if you have ordered online, it might be even more difficult even at the change bureau that issued the bills. I once had this argument at a Travelex office. I had ordered online (without fees) and picked up the currency at one of their offices. Large bills, and I asked for smaller ones. They answered that they (travelex) paid more for smaller bills, so, since I had a good rate online and no fees, they couldn't exchange my $100s for $20s So apparently (according to what travellex told me), change bureaus get their currency at different rates. Larger bills have a more favorable rates than smaller ones. So changing a large note for smaller ones cost them money. That's why they don't do it. (or so they say, I'm not savvy enough to know if it's true or not).