The Truman Show (1998) is an underappreciated classic with an utterly fantastic performance by Jim Carrey. A great thought-provoking story from Andrew Niccol (Gattaca) and directed by Peter Weir, it came out about the time I was breaking out of my own self-imposed false reality, so it really resonated with me in a deep way.
But one of the things that jumped out at me about it (and I wish they’d spent a little more time on) was how the creator of the Truman TV show, Christof, was as much a prisoner of the fake world he’d created as Truman.
It’s well worth streaming on Netflix.
ArcherVox 
This is one of my favorite movies. Like The Matrix and Videodrome, it’s a film about the way that mass media is changing us and controlling our reality. As you point out, it also has a broader meaning about the prisons we make for ourselves. A prescient and powerful work.