Just list a few of your favorite movies for me!
Mostly paradoxical time travel movies; Primer, 12 Monkeys, The Butterfly Effect, Source Code.
Or you could go with mystery/thrillers if you want that kind of cerebral; Sinister, Silence of the Lambs, Frailty, Identity.
More philosophical movies are; Instinct, Hitchhikers guide to the Galaxy, Men who stare at Goats.
most thought provoking or mind-fucky:
2001 a space odyssey
being john malkovich
the truman show
eternal sunshine of the spotless mind
i heart huckabees
enter the void(only watch if you want to be in slight horror for 2.5 hours)
i also second adaptation and the man from earth!
And to relieve the depression after those two, watch Broken Flowers.
-The Cabin in the Woods
Get really baked to watch this, you definitely won’t regret it