so...you went to one theater in a foreign country and couldn't complain about it and now all movies in all theaters have terrible quality
Nope - I go to many theatres here in Poland. Now I'm fine with complaining where necessary, but at the time my Polish wasn't up to it. The point I wanted - and failed - to illustrate was more that no-one complains, and so the cinemas get away with it far more often than they should.
I see a new movie at least once/month and have had little issues with the audio or the screen.