It's insane how loud some movie theaters are nowadays. My first experience with this was three years ago in Hong Kong, watching "Pacific Rim". At first I thought it was a technical problem and looked around me to see how other guests react, but nobody seemed to mind, apart from our small group of Europeans. I seriously contemplated leaving because it was almost unbearably loud and I was worried about my hearing.
Lately I've had similar experiences here in Austria, so it seems the trend is moving towards louder movies in cinemas, though I really hope they at least make an exception for children's movies, since it would be a shame to submit them to such a loud environment for hours at a time. (not that it isn't bad for grown-ups too, it's just especially worrying with children)
What gets me is how arbitrary sound levels seem. I'd expect sampling in the theatre to set the volume level to avoid hearing damage and make the levels comfortable but what appears, to me, to happen is the projectionist sets the sound level - so if you get a projectionist that is [seemingly] practically deaf then the volume level is far too high.
Went to a kids show, some disney tripe or other, volume was painful for me and made my youngest at the time cry ... movie theatres clearly have a thing about being loud but surely that doesn't help to make them a place anyone wants to be. Yes, I went out and spoke to someone and had the sound level lowered, it was still loud; I'm sure it was beyond the safe working volume set by Health & Safety Executive [UK] though. Amazed that it's not monitored and set automatically.