Grave of the Fireflies

I found this news ↓ on yahoo news today. so i summeried contents.
http://headlines.yahoo.co.jp/hl?a=20070903-00000019-dal-ent
"Seiko Matsuda(singer) will be performance in live action film of 『HOTARU NO HAKA(Grave of the Fireflies）』
which is known as masterpiece of animation movie. Seiko will be play the mother role of main characters(bro & sis).
This movie will be open to the public in next summer."

"Grave of the Fireflies" is a story about WWⅡ which is directed by ISAO TAKAHATA who belongs to studio GHIBRI.
I have little concern about that this film could be a good movie (daijyoubu kane kono eiga ha.... )
if i say my private impressions about this movie, the pictures are nice but the story is tooooo sad i see it once, i never wanted to see twice