PG | 2h 7min | Drama, Comedy | 8 July 2016 (USA) There are quite a few movies adapted from Japanese Manga (think Western-based graphic novels) but few of them of quality ever reach our shores and when they do, it’s usually blood-soaked, action-based stuff (“Ghost in the Shell,” “Oldboy,” “Alita: Battle Angel”). “Our Little Sister” is different in that it’s very…