Lets see if I can remember a bunch I've seen over the years:
--Seventh Seal, Wild Strawberries (Ingmar Bergman)
--Man of Flowers, Kostas (Paul Cox)
--The 400 Blows (Francois Truffaut)
--Bicycle Thieves (Vittorio De Sica)
--Solaris, Stalker (Andrei Tarkovsky)
--Aguirre The Wrath of God, Stroszek, Little Dieter Needs to Fly (Werner Herzog)
--This Sporting Life, O Lucky Man (Lindsay Anderson)
--Un Chien Andalou, (Luis Bunuel)
--Red Desert, Blow Up (Michelangelo Antonioni)
--The Hit (Stephen Frears)
There are tons more, but I just woke up from a nap...I will keep updating later. The films I listed are just a few from each director that I recall. They have many more good ones. None are in order of preference.