I putzed with the movie films in C-41 chemistry 20 years ago. I can't tell you about densitometer results, but to the eye the looked just fine. I had been using one of those movie film slide plus prints outfits in North Hollywood. I just wanted to see if C-41 could do it.

The rem-jet backing just falls away even using your finger across the film. A followup with tissue or cotton is needed.

Of course, no one can print this stuff except those specialized houses because of the different masking, it's much redder.

Prints made from this stuff lack contrast and saturation. It is meant to be "printed" to the appropriate 35mm film. Those slides were just fine.