Can't do a top 10 so I'll list 10 of my favourites and films that have affected me in some way.

In no particular order.

Ju Dou - Zhang Yimou - China 
At the Height of Summer - Anh Hung - Tran Vietnam 
The Isle - Ki-duk Kim - South Korea
Ai no Corrida - Nagisa Oshima - Japan
Persona - Ingmar Bergman - Sweden
400 Blows - Franois Truffaut - France
Three Colours Trilogy - Krzysztof Kieslowski - France/Poland
The Mirror - Andrei Tarkovsky - Russia
Seven Samurai - Akira Kurosawa - Japan
Blue Gate Crossing - Chin-yen Yee - Taiwan

Balls that's 10 already, there are so many others that could easily make the list.

Cheers Trev.