There isn't a single 4K screen in my city (out of around 20 screens altogether) and I just went to see Noah the other day and sat pretty close to the biggest screen in that cinema and the 2K projection was just terrible on such a big screen - I could clearly see the pixel grid on the whole thing and it was distracting as hell (the movie sucked a** too, btw. and to add insult to injury, the audio was very uncomfortably loud and the 1.85:1 movie was projected on a 2.35:1 screen in pillabox), so I think it's a very good thing if 4K's becoming a standard.