Here's a list of films from the Americas and Australia, which I have seen (I have yet to see films from other regions, such as Africa and New Zealand). I have graded only those films that I remember or have understood well.
Best Films
Cabaret (USA, 1972),
Capricorn One (USA, 1978),
The China Syndrome (1979),
Forrest Gump (USA, 1994),
Gone with the Wind (USA, 1939),
Limelight (USA, 1952),
Modern Times (USA, 1936),
My Fair Lady (USA, 1964),
Singin' in the Rain (USA, 1952).
Some Like it Hot (USA, 1959),
Spartacus (USA, 1960),
Sunrise: A Song of Two Humans (USA, 1927),
The Odyssey (USA, 1997),
Romeo + Juliet (USA, 1996),
The Wizard of Oz (USA, 1939).
NORTH AMERICA
Canada (Québec)
USA
LATIN AMERICA
Argentina
Mexico
AUSTRALIA AND THE PACIFIC REGION
Australia