Powerful? As in truly immersive experience?
Ridley Scott’s Blade Runner.
Choose the high resolution digital remaster. It vastly improves the already stunning visuals (without any George Lucas style fluff).
I completely disagree with @Espiritus_Corvus opinion on Crash.
While not his greatest work, David Cronenberg’s crash offers something original, different.
The 2004 film of the same name is just another in a long line of cheaply manipulative movies cashing in with a slurry of class warfare and “social justice.”