Fahrenheit 451

The Firemen take the knowledge, they won't permit, those with power make the rules, it's their remit, books are burned and turned to ash, as sparking kerosene arcs flash, if you're caught with contraband, they will commit. Montag works the fire, erasing texts, since meeting Clarisse he's increasingly perplexed, she's opened up a door, that's taken him to hidden floors, now he knows the flames he throws are all pretext.

It's not the greatest piece of filmmaking you've ever seen, and you can pull a wagon through some of the holes in the logic, but for its time, and as an example of how the few can control the many, it's still worth an exploration to benchmark where the world is all these years later.