Favourite film...

Bladerunner, Clockwork Orange, Vertigo, Labyrinth (watched it every time i pulled a sickie as a kid!), Akira, The Lavender Hill Mob, If..., Indiana Jones trilogy. Too many others to mention...!
 
Trainspotting
Gummo
Waking Life
Fear and Loathing in Las Vegas
American History X
Requiem for a Dream
Lord of the Rings I,II, and III
 
The Godfather Trilogy
Scarface
Donnie Brasco
The Man with No Name Trilogy

(Basically anything with Al Pacino and Johnny Depp is my favourite movie. :) )
 
LOTR tops all
Pitch Black was way cool
Lock Stock
Big Trouble in Little China
Commando because it was cheezy as hell "Let off some steam Benette"
Aliens (only this one of all the alien movies)
 
Serious movies: Tarkovsky's Stalker, Andrei Rubylev, and The Mirror. Fellini's 8 1/2, Bergmans Seventh Seal, Kaufmans Adaptation, and Scorcese's The Last Temptation of Christ. I should also add The Kid by Charlie Chaplin, and Lawrence of Arabia.

Entertaining movies: Rocky I and II, The National Lampoon Vacation Movies, Planes Trains and Automobiles, DIrty Harry, Back to School, The Jerk, Great Outdoors, well most 80's comedies by Chevy Chase, Steve Martin, John Candy, Dan Akroyd, BIll Murray. There is something about seeing them countlessly in ones youth, that has made them timelessly funny for me.
 
My two favourites are "Dancer In The Dark" and "Amélie". The both have fascinating characters, great stories, very original cinematography, and beautiful music. Also, "Amélie" is the funniest film ever.