I inherited a bunch of this film -- several hundred feet, in fact. I know its use is for making positives from negatives, for movie film. However, it also can be used to make tranparencies from b&w negs. Well, I spooled up a couple of rolls, to try it out as a regular negative film. Put a roll in my F4, set the ISO at 32, and shot away. Developed in D-76 at 21°C for 6 minutes under the safelight (the film is orthochromatic, and an orange safelight is fine), and got some real sharp negatives. I haven't seen where anyone has used this as a pictorial film. I'll scan in a good negative and post it here after the film has dried. It certainly deserves a second look as an experimental film.