All good or great movies are structured wherein there’s basically a “core” conspiracy surrounded by a secondary, connected “shell” conspiracy. This may be what makes a story so attractive and appealing as a drama.
It would seem that most of the time, the general population of the film’s universe remains completely unaware of anything that’s ever happening.
Just some examples of the core followed by the shell:
Excalibur (the tale of King Arthur in general) – The previous king has an unknown son. This heir to the throne is hidden, living simply as a squire.
The Star Wars original trilogy – One of the two most powerful, reigning Force users has two unknown children. One of them (the main protagonist) is hidden on a wayward inconsequential planet and is being guarded by one of the last of a now gone religious order, the Jedi.
The sequel trilogy – The Emperor still exists and is manipulating major events from secrecy. He has a granddaughter living nearly invisibly as a scavenger on a little regarded planet.
Blade Runner – There are Replicants (manufactured amalgam persons) that think that they’re human, the two in question have gone as fugitives and are living their lives somewhere. (This demonstrates that this shell doesn’t have to be a the beginning of a movie, it can be shown at the end.)
The Matrix – Reality is an ultra high level virtual reality simulation. There’s single person who has the ability to free everyone.
The Breakfast Club – A group of teenagers from different social strata form a deep connection and become friends, something considered taboo at that time. The janitor knows about it (his acting at the end as he’s watching them walk off).
John Carpenter’s The Thing – Two research stations in Antarctica have a conflict with an alien microscopic organism. One of the two survivors of the encounter may be infected.
The Ghost in the Shell feature film – An AI has achieved the state of life. There’s a violent conflict at an abandoned waterfront location involving this and is publicly announced as a terrorist incident.
(TV) The Super Dimension Fortress Macross (Robotech) – A publicly known gigantic alien empty spaceship has for years been studied and restored. What’s unknown is that it’s apparent that it was created by a race of giant humanoids. It’s also top-secret that the new fighter jet based on the ship’s technology is actually a transformable variable mecha that can turn into a robot to combat this alien race, should they ever arrive.
(TV) Westworld – Life-like robots, hosts, considered to be an entertainment marvel are actually being developed to be individual, sentient beings. One of the chief technological designers himself is a host.
I actually realized this when I was looking at my video collection of which half is anime. One by one I noticed this to be the case, and then I saw that this idea extended to all the movies as well.