Source:
Top 250 films I recommend using the BFI site for film descriptions and the critics' lists. Because the BFI site has pictures for almost every movie, I decided not to add pictures for the rest of the films.
2012 directors' poll
Historical Poll Results
2002 Critics
2002 Directors
1992 Critics
1992 Directors
1982
1972
1962
1952
The top 50
Vertigo
Citizen Kane
Tokyo Story
The Rules of the Game
Sunrise: A Song of Two Humans
2001: A Space Odyssey
The Searchers
Man with a Movie Camera
The Passion of Joan of Arc
8½
Battleship Potempkin
L'Atalante
Breathless
Apocalypse Now
Late Spring
Au hasard Balthazar
Seven Samurai (tied for 17)
Persona (tied for 17)
The Mirror
Singin' in the Rain
L'avventura (tied for 21)
Contempt (tied for 21)
The Godfather (tied for 21)
Ordet (tied for 24)
In the Mood for Love (tied for 24)
Rashomon (tied for 26)
Andrei Rublev (tied for 26)
Mulholland Dr.
Stalker (tied for 29)
Shoah (tied for 29)
The Godfather Part II (tied for 31)
Taxi Driver (tied for 31)
Bicycle Thieves
The General
Metropolis (tied for 35)
Psycho (tied for 35)
Jeanne Dielman, 23 quai du Commerce 1080 Bruxelles (tied for 35)
Sátántangó (tied for 35)
The 400 Blows (tied for 39)
La Dolce Vita (tied for 39)
Journey to Italy
Pather Panchali (tied for 42)
Some Like it Hot (tied for 42)
Gertrud (tied for 42)
Pierrot le fou (tied for 42)
Play Time (tied for 42)
Close-Up (tied for 42)
The Battle of Algiers (tied for 48)
Histoire(s) du cinéma (tied for 48)
City Lights (tied for 50)
Ugetsu (tied for 50)
La Jetée (tied for 50)
Top 100
North By Northwest (tied for 53)
Rear Window (tied for 53)
Raging Bull (tied for 53)
M
The Leopard (tied for 57)
Touch of Evil (tied for 57)
Sherlock Jr (tied for 59)
Barry Lyndon (tied for 59)
La Maman et la putain (tied for 59)
Sansho Dayu (tied for 59)
Wild Strawberries (tied for 63)
Modern Times (tied for 63)
Sunset Blvd. (tied for 63)
The Night of the hunter(tied for 63)
Pickpocket (tied for 63)
Rio Bravo (tied for 63)
Blade Runner (tied for 69)
Blue Velvet (tied for 69)
Sans Soleil (tied for 69)
A Man Escaped (tied for 69)
The Third Man (tied for 73)
L'eclisse (tied for 73)
Children of Paradise (tied for 73)
La Grand Illusion (tied for 73)
Nashville (tied for 73)
Chinatown (tied for 78)
Beau Travail (tied for 78)
Once Upon a Time in the West (tied for 78)
The Magnificent Ambersons (tied for 81)
Lawrence of Arabia (tied for 81)
The Spirit of the Beehive (tied for 81)
Fanny and Alexander (tied for 84)
Casablanca (tied for 84)
The Color of Pomegranates (tied for 84)
Greed (tied for 84)
A Brighter Summer Day (tied for 84)
The Wild Bunch (tied for 84)
Partie De Campagne (tied for 90)
A Matter of Life and Death (tied for 90)
Aguirre, Wrath of God (tied for 90)
The Seventh Seal (tied for 93)
Un chien andalou (tied for 93)
Intolerance (tied for 93)
Yi Yi: A One and a Two (tied for 93)
The Life and Death of Colonel Blimp (tied for 93)
Touki Bouki (tied for 93)
Fear Eats the Soul (tied for 93)
Imitation of Life (tied for 93)
The Earrings of Madame de... (tied for 93)
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2099 
8.3 
8.5 
/One nice thing about this list: I know what to put on my Netflix Q this month
//Late Godard at number 50, eh? Hmmm.
Still, no "Pulp Fuction"
Actually I didn't even know it was so well received, that's a good thing anyway.
I also adore to see La Jetée pretty high on the list, it deserves that love. It's such an underrated film.