Impossible to single out one particular, sorry frown I think I'll copy Raw Cryptonite's list and change out some:

I don't think I've seen Chinatown.. I must watch that one.

Lonesome Dove
Star Wars & Empire Strikes Back
Blade Runner
LOTR trilogy
The Matrix trilogy
2001: A Space Odyssey
Terminator
Godfather I and II
Howl's moving castle
Pulp Fiction
Leon
Groundhog Day
Alien
Scent of a woman
Rushmore
The Bourne Identity + sequels

I will ignore all ideas for new works and engines of war, the invention of which has reached its limits and for whose improvement I see no further hope.

� Julius Frontinus, chief military engineer to the Emperor Vespasian, cica AD 70.