The 50's and 60's were great decades for foreign films. I should add 1963; 8 1/2, The Leopard, Contempt, Barren Lives, The Executioner, The Silence, An Actor's Revenge, Muriel, Raven's End, Le Feu Follet, Judex

and 1968; no superstars but strong in depth: My Night with Maud, The Hour of the Furnaces, Memories of Underdevelopment, The Cow, La Femme Infidele, Goto Isle of Love, Death by Hanging, Theorem, Lucia, Chronicle of Anna Magdalena Bach, Shame (and Once Upon a Time in The West was officially Italian).

Then again, 1974 had 3 personal favourites; Mirror, Alice in the Cities, Celine and Julie go Boating.

1994 seems to have been a good year;Three Colours Red/ White, Chungking Express, Burnt by the Sun, Satantango, To Live, Silences of the Palace, Through the Olive Trees, Queen Margot, Wild Reeds.

I don't think there's a clear winner; i'll be interested to see if there's a consensus here. 