The thing that has been ruining movies for me lately are those damn ushers with their glow sticks.

It is hard not to be distracted from the movie by some bulky 300lb. cinema employee clunking up and down the aisles while waving a glowing blue rod around.

I think this policy was adopted by theaters in the US after The Dark Night Rises shooting. I've don't recall ever seeing them do that sort of thing prior to the later half of last year. They do it several times per movie. So very distracting.