Strangers on a Train (1951)
Patricia Highsmith surely knew how to write great thriller stories. (talented mr. ripley and this)
1 Citizen Kane 1941
2 Bicycle Thieves 1948
3 The Godfather 1972
4 Psycho 1960
5 2001: A Space Odyssey 1968
6 The Rules of the Game 1939
7 Singin' in the Rain 1952
8 Bonnie and Clyde 1967
9 Seven Samurai 1954
10 Casablanca 1942
11 Annie Hall 1977
12 The Searchers 1956
13 Pulp Fiction 1994
14 Chinatown 1974
15 Raging Bull 1980
16 Star Wars: Episode IV -A New Hope 1977
17 Rashômon 1950
18 The 400 Blows 1959
19 E.T. The Extra-Terrestrial 1982
20 Schindler's List 1993
21 Breathless 1960
22 8 1/2 1963
23 Vertigo 1958
24 Lawrence of Arabia 1962
25 GoodFellas 1990
26 Metropolis 1927
27 Some Like It Hot 1959
28 La Dolce Vita 1960
29 On the Waterfront 1954
30 Taxi Driver 1976
31 All About Eve 1950
32 M 1931
33 Gone with the Wind 1939
34 The Conformist 1970
35 Dr. Strangelove or: How I Learned to Stop Worrying and Love the bomb 1964
36 The Godfather Part II 1974
37 The Wizard of Oz 1939
38 Raise the Red Lantern 1991
39 Sunset Boulevard 1950
40 Tokyo Story 1953
41 The World of Apu 1959
42 Double Indemnity 1944
43 Apocalypse Now 1979
44 Jules and Jim 1962
45 Belle de jour 1967
46 Persona 1966
47 The Graduate 1967
48 Nashville 1975
49 It's a Wonderful Life 1946
50 Ran 1985
Bro this list was taken from films101.com 's best list. Its expanding up to top 1000 movies.I also followed that list over the years. I haven't seen only 6 movies out of top top 50.
Since you follow good foreign movies.This is the best place to find them.