DantheMan,
Fargo - The scene where Marge has the blonde sociopathic bad guy in the back of her cruiser, she's talking to him and he's not responding - "Don't you know that there's more to life than money? Don't you know that? And it's a beautiful day." Frances McDormand was so great in that movie.
are you my long lost brother? That's the exact first scene that came to my mind. That very one.
Also:
The scene in Wings of Desire where the boy is being harshly scolded by his mother and the angel passes through and you get the feeling the boy has maybe sensed him and gotten a little comfort.
There's a movie called Kolya, about a boy who's mother flees some communist country, I'm not clear which. She leaves her little boy behind in the care of a man she barely knows, he's probably an ex-lover. He doesn't want care of a child, he's just a drinking philanderer, although a perfectly decent person, but not a parent. There's this scene where he puts the kid in the bath, which has a European style shower fitting, with a flexible cord so you can move it around. The man goes out, and from outside he hears the boy talking to his mother on the shower head, crying and begging her to come back. I can cry just writing about it.