Other Iwai's project: Rainbow Song (Mild Spoiler)
I have watched Rainbow Song, a movie Iwai wrote and produced. I can tell that Rainbow Song is literally remake of Love Letter, with similar premise and overall final execution. Although the characterization and how it set is totally different, it is still having the same spirit with Love Letter.
Anyone?
http://www.imdb.com/mymovies/list?l=25080181