As much as we want to have a cashless society, I think we are not closure to its actual implementation and it will take more years before we can see it happening. And I doubt that this will be the future of cryptocurrency. This is too far fetched for me. I haven't seen the movie yet but based on the summary you put, this is just pure science fiction for me.

Again, as much as I would like to have cashless society, we may never see it in our lifetime, although there have been countries like Sweden or Switzerland if I'm not mistaken who has been trying to introduce it to their society. But I don't know if this will be a success or a total failure.