After I watched the first movie, I thought this was a series of young adult books. I asked my kids if they had heard of this series. They had not. So I did a little research and was surprised to find it was not. This was put together by a youtube person from scratch.
The main premises is kind of unbelievable. But then again, so is a lot of other sci fi. The idea that a country would cull its population by killing the "dumb" ones. But other countries (in the same world) solve it in different, more logical ways. Such as birth control.
So, ignoring the main premise. The rest of the movie is a little less believable than the first one. I don't want to spoil the movie, but how do they hide taking care of all those people? and why is everyone still a teenager? Wouldn't some of the workers have aged?
I enjoyed this and am looking forward to the third movie which, I think, is being made. Perhaps slowed by covid.