Gimme something to break my brain

Just finished watching Satoshi Kon's TV Show Paranoia Agent, and I plan on delving into his other works soon. He's known for blending the line between fantasy and reality in really mindbending ways.

So, I decide to keep the WTF train going and I'm looking for movies that'll just completely break my brain on account of their plots, themes, execution, etc.

Movies I've Already Seen That Fit The Bill:

Tenet
Inception
Arrival
2001
The Lighthouse

Any and all similar recommendations would be appreciated