Thanks for this, this is very useful for a related ai project I’m working on.

What about other colours? Isn't that film famously under saturated for sky, water, vegetation, etc?

It very might be and it shouldn’t be easy to find good training pictures in the sea of amateur shoots online with different development techniques and light conditions, the last batch was also produced in 2005. Some previous generation of that film line might have similar skin tones. I would think that with modern techniques it isn’t necessary to apply the emulation to the whole image but to just the parts desired?