The message of the movie is supporting each other's dream through criticisms and setbacks and it was translated pretty well from start to finish, no unnecessary love triangle needed.
Acting wise, this film features various young faces with potential but to me, no one in particular shines in their roles. Tsuchiya Tao's performance as the main character, although enough for the movie, is just so-so. Her facial expressions are quite limited to the try hard dreamy and puppy dog eyes and here, it shows pretty clearly.
The ending song, Kiseki from GReeeeN and whiteeeen, works perfectly with the theme of the movie.
Anyway, this movie is one of the better adaptations we've seen in the sea of adapted films from Japan in recent years. I haven't read the manga it's based on but as a stand alone, the story is solid and it's a good one for me.