Saddest Part
There is just something universal that the director hit upon when making the film, as it deals with the subject of intimate relationships. I really felt frustrated and sad when Alyosha and Shura part ways at the railroad tracks, if you've ever left someone behind family/spouse/friend at a train/bus stop, I don't know you get really emotional when you see them kind of fading away and not being able to hear them or touch them. Then you get that maddening sense of depression and desperation until it passes, huh, or maybe I'm just kind of sensitive like that.
The part with the mom was too much also, I can just imagine all the people who've lost people in wars or in some other way bawling at the expressions and tender dialogue. If I was in damp eye country during their scene it was worse when he says 'Ill come back mama, I promise'. Just imagine this scene and Michelangelo's sculpture La Pieta as its kind of emotional successor.
This film is really special to me in that its one of those, take you to the mellow/somber place in your heart but in a good way. Its a warm and scathing pain that you feel in your heart, if you give the movie a chance.