The Grey (2012)

2017 JP Kadokawa Blu-ray has the best encoding out of all the older discs.

Kino Lorber and Artificial Eye Blu-ray use the same master, between the two the PQ on Kino's release is slightly better, but the difference is negligible. However, Artificial Eye also includes the 2.0 stereo mix in addition to the 5.1 mix, while Kino only includes 5.1 mix.

The 4K restoration (Criterion, 4K etc) are cropped to 2.35:1, have revisionistic colour grading and other changes.

Caps: old master, old master vs 4K restoration

Wong Kar-Wai on the framing:

With Fallen Angels, I have changed the format to cinemascope, because it was originally what I had intended to release the film in. When we were cutting the film, we accidentally turned the Steenbeck on anamorphic instead of standard. I felt that the film looked much more interesting because it enhanced the distance of the characters on top of the extreme wide angle that we shot on. Back then, it was impossible to shoot a film in standard and release it in anamorphic. With this restoration, we have successfully fulfilled this wish.

The Paramount 4K Blu-ray has a much better new scan that removes the original extremely dated color grading. This is an improvement on one hand but a definite revisionist change on the other. There is the expected grain management and slight HDR issues in addition to encoding quirks from Paramount. It is a giant improvement over the original Blu-ray but the color change and other issues means that the Blu-ray is one to keep for purists to have the as-is original iteration of the film's presentation. Audio wise the film has been remixed into Atmos but it merely seems like a slightly tweaked and frankly tamed version of the original 5.1. Of the two I prefer the Blu-ray 5.1. The original Blu-ray was Dolby TrueHD and the reissue Blu-ray in the four film Blu-ray collection boxset was DTS-HDMA.

DFIC extensive review: https://youtu.be/evsrJOTIjdA?si=wtdWGxZBfhPYTIeW