Ann Doran

Sourced from a 4K scan of the 35mm Fine Grain. Even with its unfortunate and noticeable print damage, tears, and other issues, still easily beats any prior disc release, though the Imprint BD (same master as Kino, but inferior encode) included in their Essential Film Noir Collection Vol. 3 set does include more extras. https://youtu.be/-Wrsn6-XJCo

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.

New 2k scan with very different color http://www.dvdbeaver.com/film3/blu-ray_reviews55/nothing_sacred_blu-ray.htm  but overall much better compared to the older Kino Lorber Blu-ray

MoMA has just scanned from the original separations, and it's the only version of this classic with accurate Technicolor. This new restoration is now streaming on Criterion Channel

ClassicFlix Blu-ray is using the same source and is superior to Youtube 4K Streaming

 https://www.youtube.com/watch?v=DHxbyV-8V6Y see caps

Criterion 4K Blu-ray (not by much, caps)

From cbc:

I much prefer the 4K Blu-ray track. LaserDisc has several nasty constant hums, and even after you remove that, the detail level is on-par with the 4K Blu-ray and has a lot of crackling. The 4K Blu-ray has some variable noise reduction, but it's done well and non-intrusive IMO, I watched it with that track and was happy.