Tokyo Tower: Mom and Me, and Sometimes Dad (2007) - story of the relationship between a mother and her son throughout their lifes, with lead role played by the wonderful Kirin Kiki. It is such a shame that Yayako Uchida, who was playing the young mother, hasn't had roles in more movies. I saw her only in The Wandering Moon beside this film and she had such a nice face and expressing eyes. She somehow reminds me of my grandmother even though she is not even half of her age :).
P.S: I have just realized this site isn't even featuring Yayako Uchida among the cast of the film even though she is playing one of the main roles. WTF! I tried to add her to the cast but she is not shown on the page of the movie.