For further international opinion, try TOP 100 MOVIE LISTS on the net.Some poll results not included:
Portuguese critics (European films only),1994;Nosferatu, La Regle du Jeu,M, L'Atalante,Ivan the Terrible,Passion of Joan of Arc,The Blue Angel, Napoleon, Voyage to Italy,The Last Laugh...
Russian Critics,1995;Citizen Kane,Battleship Potemkin,Intolerance,8 1/2,Cabinet of Dr Caligari, Breathless, La Regle du Jeu,L'Atalante,Passion of Joan of Arc,Ivan the Terrible,Man with a Movie Camera, Mirror, Rashomon, Andrei Rublev..
German critics 1995;The Searchers,Taxi Driver,Vertigo, Night of the Hunter,Citizen Kane,Lawrence of Arabia, North by North West,Le Samourai, To Be or Not to Be, The Last Picture Show,Sunrise, Tokyo Story..
Romanian Critics,1995;Citizen Kane, The Gold Rush,Andrei Rublev,Wild Strawberries,8 1/2,Battleship Potemkin,The Passion of Joan of Arc,La Strada,L'Avventura,Blow Up.. 
Channel 4(u.k)poll of viewers,2001; Star Wars/Empire Strikes Back,The Godfather1&2,The Shawshank Redemption,Pulp Fiction,Some Like it Hot,Gladiator,It's a Wonderful Life,Blade Runner,Schindler's List,Goodfellas..
"Positif", French Critics,1991?;La Regle du Jeu,Citizen Kane,2001:A Space Odyssey,Vertigo,L'Atalante,8 1/2,Sunrise,Barry Lyndon,The General, Sansho the Bailiff...
Sight&Sound,1982;Citizen Kane,La Regle du Jeu,Seven Samurai,Singin in the Rain,8 1/2,Battleship Potemkin,L'Avventura,Magnificent Ambersons,Vertigo,The General,The Searchers,Andrei Rublev,Apu Trilogy,2001:A Space Odyssey...
(For what it's worth)My Favourites; Sansho the Bailiff,Paris Texas, Andrei Rublev,Sunrise,2001:A Space Odyssey,North by North West,Alice in the Cities,The Green Ray,Some Like it Hot,Abraham Valley,Seven Samurai,La Regle du Jeu,Mirror,Letter from an Unknown Woman,Vertigo, The Searchers,Maborosi,Casablanca,Tales of the Taira Clan,Metropolis,The Band Wagon,Singin in the Rain,Tokyo Story,Une Partie de Campagne,The Colour of Pomegranates, Persona...
I hope this helps.But even then, some films which do well in top 10 lists aren't necessarily universally liked.Average scores in Film Guides etc could also be borne in mind, along with selections of Classic Films in books and magazines.
The next Sight and Sound Poll,2002, will include more voters from nelected countries and areas of the world.Expect African, Asian and Latin American films to slowly filter through to international status in the coming decade.Lists till now have been rather Anglo and Euro-centric.  