Actually I think they alluded to what caused the worldwide infertility. The film takes place in 2027, with the youngest person being 18. So, the last child born was in 2009.
In another scene they passingly say that Clive Owen’s son had died in 2008 during the great flu pandemic. So it seems to me like either the flu itself, or a vaccine/medicine ended up causing the infertility. I’d say with the overall tone of the movie it’s more likely that a flu vaccine caused it.
Well, there sure is a “shadow-new world order” in place, in the movie.
Notice how by the end the fighter planes that bomb the uprising to smithereens come from the side of France, and go bomb in the UK.
Whenever have France and the UK been firendly enough to share military bases and operations? :lol:
As it happened throughout the world at the same exact time, which rules well out the natural cause, which would spread in stages, rather than a single outburst.
The nun talks about a few miscarriages happening in the UK, and her calling Sidney, and the same is happening there.
A state-enforced fertility check, under paena, would just be perfect and lead to an almost instant result.
I’d say, though, that whatever the source of it, the writer and director managed all to well in one department: raising discussion about the issues 