I would agree with you that most part of the Bitcoin holders won't be buying movie tickets with their BTC these days. But "none"? - No.
AMC is a big chain with, let's take pre-pandemic figures, 1,226,966,715 tickets sold in 2019. I'm sure, among so many people there will be millions of Bitcoin holders, and thousands of them will buy those tickets, even maybe just to buy something with BTC, just like Laszlo Hanyecz did one day.
Hehe I might be exaggerating, however, yes there will be ticket sales in bitcoin but the bitcoiners’ purchase of them would be more for virtue signalling than buying for the movie ticket. It will be big news only in the beginning. I predict AMC will remove bitcoin acceptance within 5 years because of very few sales through bitcoin or they might try to increase sales through crypto by accepting altcoins hehehehe.