Two other rays of hope here:
1) the movie industry still consumes a hell of a lot of film. Even the digital flics are eventually made into film. Sooner or later of course, the industry will switch to digital projection systems, but the cost of re-tooling would be enormous. The industry has some large fixed investments in the form of projection, and the cost advantage to justify a switch would likewise have to be pretty large.
2) Microfilm is still the preferred method for long term archiving of data. We know how long microfilm is good for, which can't be said with some of the magnetic digital storage methods.

I'm guessing 35mm film will be the last to go, and ULF sheet film the first to go. Get a freezer, and learn to shoot without bracketing!