RE blackcrush: you have to remember that film has a MUCH larger colorspace than DVD or Bluray.

Whereas details can still be seen in very dark areas on a projected film or DCP, those areas will just come out as black on an 8-bit colorspace.

We're really due for an increase in colorspace in our media and monitors. In my opinion, the resolutions we have today (4k and even 8k) are about as good as we'll ever need - especially at home. The real eye-opener with the upcoming UHDeye-opener will not be the increase in resolution, but the rec.2020 colorspace.