OK, let's stop for a sec - Arris' ALEXA records files that are nothing short of amazing quality RAW
First, 4K studio transfers are much better quality than ****** publisher re-scans.
Second that ALEXA has a DR of 14 stops
, even if it shoots at 2K and Skyfall was pretty awesome quality, you must admit.
Digital Cinema theaters are still running with 2K projectors.
Lastly, even IMAX is (dual-projected) 2K, remember.
DP of Skyfall Deakins about shooting with ALEXA (he had the first units, 3 different models): http://www.arri.de/news.html?article=1095&cHash=2d1a22f2b0c8d8d913d5a02ad190234e
"I did side-by-side testing and found that there was so much more latitude in the file from the ALEXA than in a 4K scan of a film negative. I was also drawn to the subtle fall-off to highlights and the enormous amount of detail in the shadows. It was the first digital camera I had seen where I thought the technology had crossed the knife edge and taken us into a new world."
How the IMAX version has larger AR due to ALEXA's taller RAW format: http://www.daveonfilm.com/how-the-imax-version-of-skyfall-was-created-10519.html