LotR trilogy, John Carpenter's The Thing, Ringu, Hellraiser 1&2, PCU, Jacob's Ladder, Spinal Tap, The Omen, Audition, Fast Times at Ridgemont High, Kids in the Hall: Brain Candy, Donnie Darko, Se7en, Office Space...
It is not actually a movie, but i can't pass without mentioning the series "X-Files". I am a big fan. Well there is actually a movie of the series called "Fight the future"
Lord of the Rings trilogy
Catch Me If You Can
Robocop 1 and 2
Sin City
Miracle
Batman Begins
Spider Man 1 and 2
Final Fantasy: The Spirits Within
(Might as well add Final Fantasy VII: Advent Children - I already know that it will be one of the best movies ever)
Snatch
The Shawshank Redemption
I'd have to say American Beauty. However, I just saw The Devils Rejects about a week ago, and although it sucks as a movie and barely has a plot, it has an extremely high entertainment value, so I like that one a lot too.
Gladiator
Blade Runner (1982)
War of the Worlds 2005 (saw this one last night, it's awesome unlike the critics say)
Batman Begins
American Pie series
Memento
The Firm
Bad Boys I+II
Beverly Hills Cop (and almost everything else Murphy does)
The Truman Show (+ all other Jim Carrey stuff)
A Beautiful Mind
+ many more I can't remember right now.
and Magnolia sucks. WTF, sitting for 3 hours, watching this movie.. and suddenly FROGS start falling out of the sky. What a nonsense.
Bladerunner
The Shawshank Redemption
Hero
Once Upon A Time In Mexico (for its sheer nonsensical violence and guitar combat)
Any kung fu movie - the bad ones are always the best. Especially when they have terrible subs. Haha, on that subject check out these from a dodgy sub of Claws of Steel: bitchy lion mr.pimp cripple ass attack
Amadeus
Interview with the vampire
Big fish
American history X
Dead poets society
Memento
Nightmare befre chrismas
Braveheart
The Wall
The usual suspects
The longest movie I saw was this Indian movie from the 70's and it was 4 and a half hours long. The worst part about it is that it was so boring I was hardly following along so I still have no idea what the movie is about, and I'm not going to see it again to find out.
LoTR series
Alexander the Great (director Oliver Stone).
Fight Club
American History X
Star Wars series
Ninja Scroll
Office Space
The Odyssey (director Andrei Konchalovsky)
Indiana Jones series
Ben Hur
League of Extraordinary Gentlemen
1: A Clockwork Orange
2: The Exorcist
3: The Piano
4: American Beauty
5: The Red Violin
6: The Last of the Mohicans
7: Eyes Wide Shut
8: American Psycho
9: Irréversible
10: Dobermann