"Our Little Sister" centers around four sisters, their lives and their relationships. It may look like a small, complacent, too slow and contemplative movie, but Koreeda, with the help of amazing acting all around, elevates the proceedings and delivers a really good movie.
Sachi, Yoshino and Chika are three sisters that have lived together for some years. Their father left, marrying again, and their mother run away, leaving them behind. The death of the father brings all of them to his funeral, where they meet their half-sister Suzu. Sachi, the oldest, offers Suzu go living with them, and Suzu accepts, the four starting to live together.
From that moment on the movie develops slowly, but securely, with great character development, a couple of very touching moments, and a focus on human relationships and the reasons behind our behavior. That Koreeda has restrained Haruka Ayase, charming Masami Nagasawa, happy-go-lucky Kaho and innocent but smart looking Suzu Hirose as the four sisters helps, as they embody their characters and bring them to life. The plot helps, with little vignettes that help develop the story and entice the viewer's attention.
The movie is a little bit slow, but you won't care, because what you will care about is these four sisters, their world, their problems and the relationship they have between themselves and with all that surrounds them. Great.