You gotta pick just one.
And for those who may wonder about this question on a game site, I personally think that one influences the other.
I'll start.
The Crow.
BEST. MOVIE. EVER.
Even after they changed it around from the graphic novel.

I have a very hard time picking a favorite anything, but if I absolutely had to pick just one, it would probably be Casablanca.

Star Wars Series. (Episode VI)

Hana-bi (Takeshi Kitano)
only a word
EPIC
[url=]http://en.wikipedia.org/wiki/Hana-bi[/url]

Ugh.. Just one?
I'll have to go with Zatoichi then.

For me It's impossible to choose just one movie, but I recommend Oldboy and 3-Iron to everyone I meet.

Blade Runner

"Ran" by Akira Kurosawa. Absolutely fascinating and beautiful.

Last Life in the Universe (Pen-Ek Ratanaruang)
[url=]http://en.wikipedia.org/wiki/Last_Life_in_the_Universe[/url]
really a good movie

Aliens.
You're on the express elevator to hell...... GOING DOWN.

I agree. Probably the best thai movie I've ever seen.

is the first time,that i see a person that knows this movie ,great (:3

Jurassic Park, loved it as a kid, can still with it everyday if I could :)

The Girl who Leapt Through Time...
I absolutely bawled when i watched it. HIGHLY RECOMMENDED.