When Marnie was There (blatantly stolen from Wikipedia: based on Joan G. Robinson's novel of the same name, although it transposes the setting from Norfolk, England from the original novel to Sapporo.The film follows Anna Sasaki living with her relatives in the seaside town. Anna comes across a nearby abandoned mansion, where she meets Marnie, a mysterious girl who asks her to promise to keep their secrets from everyone. As the summer progresses, Anna spends more time with Marnie, and eventually Anna learns the truth about her family and foster care
At first, you don't know exactly what or who Marnie is -a ghost, an invisible playmate, someone real or perhaps all of the above. It speaks of friendship, courage, and first love. It's beautifully rendered and I love the soundtrack. It's not well known, but it definitely worth the effort to find.