If this is digital projection, then it may not have the bulb problems of a conventional projector. Someone else mentioned seeing Lawrence of Arabia on the big screen in it’s late 1980s reissue. It was a condition of the screening agreement that the projector be properly calibrated and tested; bulb brightness was a part of that.
It’ll be really interesting to see how commercial theaters ultimately transform with all the digital stuff out there. I don’t buy the view that home theaters will kill movie theaters. I see the former as more of a catalyst. Sort of like what happened decades ago with the advent of TV.