Everybody uses mime and gesture in real life, though we don't realize it. It's very useful as a performance technique, though it can be boring to watch on its own.
We have people being a little uncomfortable in their life on Earth with finances and so on, so Science Fantasy or Science Fiction allows people to think that there are possibilities beyond the gravity of our planet.
I quite like post-apocalyptic films, things like 'Mad Max' for instance, because they are so full on and there is something quite cleansing about the post-apocalyptic because you can see where we all think we're heading.
