Photo: Mubi Jim Jarmusch’s Father Mother Sister Brother finds the director in a minor key, which is sometimes his best key. A triptych built around a series of aggressively unremarkable interactions, it feels like a film that the director might have made while waiting to make a different, bigger film. It takes place in three different cities, and at times feels like individual sections might have been shot in a day or two; the cast of heavy hitters, at any rate, probably didn’t need to block