I'm actually on the fence about how I feel so rather than aibu I guess I'm just wondering what others think/thought.
Took DS (6) to the Minecraft movie tonight - this isn't a question about taste or quality of the film! Obviously Minecraft is enjoyed by a wide range of ages, and in particular there were large groups of teenage boys there, I'd say between 13 and 17 at a guess. They were generally polite in any contact (Ie; saying excuse me to get past etc) but when the film started, every time there were particular references there would be loud cheering, shouting, clapping and repeating the line - to the point of not being able to hear the film. I had briefly seen reference to this online and a friend who took their child to a different cinema also experienced it previously. I guess it probably happened about 15 times throughout the movie.
Now on the one hand, it was a bit of fun, they've paid their money too and it was an experience - I guess similar in vein to Rocky Horror audience.
On the other, there were lots of children around my D's age and some (D's included) were quite startled, upset and didn't understand why people were doing this - some left early, some were tearful and for D's it definitely spoilt his evening a bit.
I don't really know what a solution would be to make it so both groups enjoy it, but I think ultimately I'm a bit annoyed. Have others experienced this and what did you think? (For the poll purposes - iabu would be it's fine people are just having fun, ianbu would be that it's a bit annoying and antisocial