Kenner G. Kemp

Brand new HD master by Paramount Pictures – from a 6K Scan of the 35mm VistaVision Original Camera Negative

Germany iTunes has HD streaming, otherwise DVD only

SF is in 1.66 aspect ratio. Whether this is the intended ratio or a compromise isn't clear.

American Film Institute's catalog and Variety's contemporary review list it as 1.66, but other sources disagree.
Exhibitor's contemporary review lists it as 1.85, IMDB and an internal pre-production note from Warner Bros. list it as 1.75.

Criterion Blu-ray has minimally better encoding than Twilight Time Blu-ray see caps

HD restoration by Paramount from a 4K scan of the 35mm fine grain

Kino Lorber 4K Blu-ray is disappointing (review)

UK Signal One Blu-ray is marginally better than Criterion Blu-ray, same 4K restoration, see caps

The 4K discs in both Criterion and Imprint sets are FiM encodes, but low-passed. The compression is better, but some of the grain is lost. Difference is pronounced in screen caps, but not likely to be noticed during playback, without a reference to compare it to. Comparisons

All discs use the same source transfer. It's not of the highest quality, and it includes some slight distortion, looping, clicks, pops, and hum. Criterion cleaned it up for their release, but unfortunately also lost a lot of fidelity in the process.

MGM NTSC DVD doesn't seem to have some of the more prominent distortion and has slightly different EQ but is otherwise the same.

The Criterion Complete Kubrick and Imprint 1953-1957 sets include remastered BDs. All standalone releases are from an earlier master.
Arrow UK Blu-ray has an exclusive isolated score & effects track. Kino Lorber and Imprint have an exclusive commentary each.