Biography from TMDB
Small role · Director: Ishirō Honda
Sources: Criterion Forum (opens in a new tab)
Small role · Director: Akira Kurosawa
Sources: Criterion Forum (opens in a new tab)
BFI 4K Blu-ray has excellent master and grade, no DNR and tasteful HDR
Restored original mono mix: Toho Japan 4K Blu-ray
Unrestored original mono: 2014 BFI Blu-ray
BFI 4K Blu-ray has OG Perspecta (in 5.1 container) and a stereo downmix of it; no original mono.
The unrestored track on BFI's earlier release appears to be an almost entirely unmanipulated transfer of the original mix. It suffers from a distracting low-frequency hum. The 4K restoration comes with a restored track, which appears to be the same transfer, but which appears to be cleaned up with a moderate amount of noise reduction and some EQ, nicely opening up the high-end, and which is likely to be preferable to most listeners. All earlier releases sound poor.
Perspecta isn't a discrete surround format, instead only relying on manipulating volume and panning of the mono track across L/C/R channels, based on embedded control tones. As such, even the Perspecta track is technically just the mono mix, though the omission of the proper mono on BFI's 4K is still unfortunate.
Small role · Director: Ishirō Honda
Sources: Criterion Forum (opens in a new tab)
AIP Dub is only found on the 2011 Media Blasters Blu-ray along with other exclusive extras (NOT the 2014 reissue)
Small role · Director: Akira Kurosawa
Sources: Criterion Forum (opens in a new tab)
No clear winner, Criterion SDR 4K Blu-ray has better defined grain and is cleaned-up more thoroughly. But looks grayer and flatter in daytime scenes. BFI 4K Blu-ray's HDR/DV is better in contrast but the grading can be debatable.
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