From time to time I came across some outdated slide film. when in general not interested in producing slides I usually process the film in C-41. Some films are better for this process, to me, the Kodak slide films are the best. Not to much color shift and not to extreme contrast.
Although, the technique may not be easy to print and or scan.
When having very high contrast negative the shadows in the picture tend to bleed into the mid and high tones. Even the unexposed borders of the film could be a problem, creating shadows in the outer part of the image. That’s why in some of the upcoming examples I have cropped the images. The border problem could be addressed with a tight frame, that crop just inside the exposed part of the film strip.