I doubt there is anyone connected with any large movie theater company who really cares about sound quality. As long as sound comes out of the speakers, they are happy. Also most movie goers don't know what is possible or care for that matter.
If you've ever been to a movie and it looks dull on screen, it might because your local theater owner is turning down the brightness of the projector, thinking that it will make the very expensive light bulb last longer. The makers of the projector and the bulb have tested this theory, and it does not increase the life of the bulb one single bit. But many theaters still do it anyway. All you get is a dull looking movie.
If you've ever been to a movie and it looks dull on screen, it might because your local theater owner is turning down the brightness of the projector, thinking that it will make the very expensive light bulb last longer. The makers of the projector and the bulb have tested this theory, and it does not increase the life of the bulb one single bit. But many theaters still do it anyway. All you get is a dull looking movie.