I've already sent a lengthy and VERY positive review, having loved this film and seen it now 3 times!
However, I realized that my praise omitted 2 very important considerations: first, the music, and second, the first-rate cast.
The music -- pure, lovely melody, unobtrusive while at the same time, so expressive of the scene at hand, especially when Grandpa goes shopping: delightful!
The cast: every single actor was so convincing, not just reciting lines but, with every gesture, every facial expression, every silent pause, conveying meanings often deeper than words.
Congratulations to ALL who made this film a true work of art, from beginning to a perfect, and oh-so touching end! Thank you for touching my heart.