It's the opposite journey from what I've usually done with films. I find it very easy to go from, say, a lit, pleasurable environment, like what you see outside there, to a very dark place. But the opposite journey, which is what this movie takes, is much more complicated.
I wasn't a big science fiction aficionado, there were a few films like 2001 or Blade Runner that were favorites of mine, but since I started this series I have gained more respect for the genre and become more of a fan myself.
All writers of fiction will at some point find themselves abandoning a piece of work - or find themselves putting it aside, as we gently say.