kolya , plus 2 other favorites are the Czech dramatizations of the Good Soldier Schweik and Beg to Report Sir (Part 2)..
both made in the 50s with an incomparable cast of Czech actors and remarkably close to the original novel set and written by Hasek during WWI.
2 other russian films that I absolutely loved were..
My Friend Ivan Lapshin, and Days of Eclipse.
and a Russian Mongolian collaboration 'Close to Eden' or Urga.
when films take you places you dont expect,
and when you cant predict what is going to happen (because of some formula)
those are quality films.