I am going to make a list, not of 10 movies, but 10 sets of movies.

1. In the mood for love
2046

2. Scenes from a Marriage
Autumn Sonata

3. Vertigo

4. Last Year at marienbad
Hiroshima mon amour
Muriel
Night and fog

5. L'avventura
La Notte
L' Eclisse

6. The godfather
The godfather 2
The conversation
Apocalypse Now (Redux)

7. Deer Hunter

8. Maladolescenza
Vases de noces
Salo or 120 days of Sodom

9. Irreversible

10. Zerkalo