There's many, but definitely Eyes Wide Shut. I'm glad others here have mentioned it. I love that movie. It's a true masterpiece. Everything from
the music, colors, camera work, acting, the timing, everything is perfect. Kubrick's best work, next to The Shining.
There's this indie film called FUN with Alicia Witt that is amazing. The performances with the two main young actresses is just so fascinating to
watch.
Suspiria by Dario Argento. A Horror Masterpiece!
Heat by Michael Mann. The best police drama/action movie. I mean cmon, the street shoot out is worth the admission alone!
But I'm a Cheerleader. haha sorry, I just love that movie. Very funny.
Natural Born Killers! .

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The Contender. Politics at it's finest. Powerful stuff.
Mulholland Dr. - David Lynch, need I say more?
There's more...I just can't think right now.