In 2000 the outing you described would be a little over $60 in New York (only source I can find quickly; assumptions: 2 adults, 2 kids, 2 large popcorns, 4 candies, 4 sodas). About $32 for tickets, $10 for popcorn, $12 for candy, $10-12 for sodas. [1]

Assuming my assumptions are roughly correct, that's still about $115-120 with inflation. However that means prices have increased 25-30%. The adult ticket price for Zootopia 2 for my area is $24 for an evening showing, which is about 30% over inflation. I expect the same general trend for concessions as well. Mostly this is to pay a bigger and bigger cut to studios.

[1] https://www.nytimes.com/2000/07/04/nyregion/survey-finds-snacks-driving-up-movie-costs.html

Edit: And instantly down voted for trying to add to the conversation. Maybe I just need to stop posting on Lemmy completely. This place has gotten a lot less friendly since I first joined (not my first handle).