Probably the movie Perfect Blue. I love creatively told, dark stories, and I love good animation, that movie expertly delivered on both and resonated with me.
This might be an odd answer, but:
Open Intellectual Property Casebook by James Boyle and Jennifer Jenkins.
The Origin on Consciousness in the Breakdown of the Bicameral Mind by Julian Jaynes.
Now that was a wild read.
A Canticle for Lebowitz. A post apocalyptic scifi written about earth after a nuclear holocaust written in the 1950s and is extremely fun and terrifying to read. The guy who wrote it was a WW2 bomber and only every wrote this one book and it is an amazing piece of literature.
Finnegans Wake. I read it across the year with an online group. It was always on the edge of incomprehensibility - often well over the edge - but it definitely had a impact.
This year’s ‘big read’ will be the Chinese classic Romance of the Three Kingdoms I’m just about to make a start.