https://ymcinema.com/2022/03/01/christopher-nolans-oppenheimer-is-the-first-to-be-shot-on-bw-imax
So, I'm excited for this, obviously.
One major nitpick that I have with the article is that there really isn't such a thing as a black and white film camera. There have been monochrome digital cameras manufactured in recent years; but, if you took the same camera that they used to shoot The Jazz Singer and ran color film through it, you would get a color image.
Kodak currently doesn't have 65mm black and white motion picture film listed in their catalog. I'm sure Nolan has the clout to make it happen; but, usually this would mean that the movie would be shot on color film and the color would be removed in post.