I freakin' love movies.
Some of the films that I consider (nearly flawless) masterpieces are, in order:
Blade Runner
Groundhog Day
Star Wars: Episode V - The Empire Strikes Back
Chinatown
and One Flew Over the Cuckoo's Nest
Other films that I can watch again and again and that I consider excellent are, in order:
Back to the Future
The Shawshank Redemption
Star Wars
The Matrix
The Fugitive
Mission: Impossible
A film that has long been my favorite is Contact
Some "foreign", or non-Hollywood, productions that I can highly recommend are, in order:
Ying Xiong a.k.a. Hero
La Cité des Enfants Perdus a.k.a. The City of Lost Children
Cidade de Deus a.k.a. City of God
Le Fabuleux Destin d'Amélie Poulain a.k.a. The Fabulous Destiny of Amelie Poulain
The most recent film I've seen that deserves special mention (because it resonated with me long after it was over) is Michael Clayton
Well, there you go. Aren't you glad you know that about me know?

My favorite films are in order
1: Empire strikes back
2:Apocalypse now
3:The army of darkness
4:Repo man
5:Evil dead 2

My favorite films without order:
Pulp Fiction
Goodfather
Scarface
Apocalypse Now
Equilibrium

Favorites : Conan the barbarian, LoTR trilogy, Hero, Leon, the 13th warrior, A passage to India and a bunch of Wong Kar-Wai movies.
Oh, and the big Lebowski.

My favourites, you're asking?
Schindler's List
It's a Wonderful Life
Singin in the Rain
Blazing Saddles
Die Hard
Here are some unordered movies:
Willy Wonka and the Chocolate Factory
Requiem for a Dream
A Night at the Opera
Catch me if You Can
The Terminator (1 and 2)
Who Framed Roger Rabbit
It Happened One Night
A Clockwork Orange
Saving Private Ryan
Fargo
King Kong (original)
Dark City
Indiana Jones and the Last Crusade
Gone With the Wind
Lawrence of Arabia
History of the World Part 1
The Hunchback of Notre Dame (Disney)
Serenity
12 Angry Men
Does anybody know of any good foreign movies?

A few that I've seen and enjoyed:
Tae Guk Gi: Brotherhood of War
Stalker
City of Lost Children
Oldboy
The Blind Swordsman Zatoichi (The one from 2003 with Takeshi Kitano)
Run Lola Run
Renaissance

If you like chinese folklore : Raise the Red Lantern (1991).

A cinema list thread--I have to post here.
I couldn't really name my ten favorite movies of all time--it changes on a regular basis--so here are ten movies I really, really like:
Seven Samurai: I guess if you held a gun to my head and insisted I pick an absolute favorite movie, this would be it. Kurosawa's masterpiece--about as marvelous an action epic as you could hope for.
Star Wars: The original is by far the best. Pure cinematic wonder.
Drunken Master 2/The Legend of Drunken Master: Jackie Chan doing what he does (or at least did) better than any other human being. More dance than cinema.
Audition: The greatest horror film ever. And really, other than a couple of memorable bits earlier on, only the final 15 or so minutes are truly horrifying. Other movies may outshock or outgruesome the finale, but they aren't anywhere near as masterful in ratcheting up the tension to an excruciating level--and then letting it snap.
North by Northwest: Hitchcock's best thriller.
The General: Brilliant silent comedy by Buster Keaton.
Oldboy: A surprisingly weighty tragic thriller.
Raiders of the Lost Ark: This is the closest I've seen to a perfect movie. Impeccably crafted and all kinds of fun.
Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb: Hilarious and chilling in equal turns. That ending.
The Castle of Cagliostro: An animated masterpiece that stands proudly alongside the best live-action adventures.
As for recent viewing, I bought Ponyo over the weekend. Absolutely magical--like a children's storybook brought to glorious life.

The Last One I saw in the theater was Star Trek - Loved it.
Can't wait for Iron Man 2

Office space deserves to be mentioned on this thread. We were just waiting for you to do it.

Yep, seen it (with my girlfriend ^^), great movie, or should I say movieS.
Can't wait for New York, I Love You (from the same producer).
Recently seen:
- Up in the Air
- A Serious Man

Yesterday i saw kick-ass at the movies and i thought it was great.
Also saw catch-22. It was a good movie but it wasn't very funny compared to the book.

Anchorman.
Kung Pow.
Blade Runner.
Cloverfield.
Johnny Mnemonic.
Dead Alive.
Evil Dead Trilogy.
Night of the Creeps.
And last but not least, Dragonball:Evolution.
No.
Not really.

Top 5 of all time:
1) Blade Runner (The Final Cut, AKA with the electronic unicorn and happy ending)
2) Apocalypse Now (Redux edition)
3) Night of the Living Dead (Original '69 Black and White)
4) Taxi Driver
5) Tie between The Watchmen and Johnny Mnemonic and Ghost Dog
Great movies I have seen recently:
American Werewolf in London
Planet Terror/Death Proof
What's Eating Gilbert Grape?
[.Rec]
Death Sentence
Evil Dead Trilogy
Dead Alive
Night of the Creeps
The Serpent and the Rainbow (CREEPY Voodoo zombie movie by Wes Craven)
Zombieland
District 9
Avatar
WAY too many to list.