The Japanese director Hirokazu Kore-eda is not a filmmaker anyone would accuse of being Hollywood-adjacent. But his new movie, “ Sheep in the Box ,” takes off from an idea that sounds like pure high-concept Hollywood — or, in fact, several versions of that movie at once, all of them bad. It’s the story of an architect, Otone (played by the weirdly Sandra Dee-like Haruka Ayase), and her runty carpenter husband, Kensuke (Daigo), whose 7-year-old mop-haired son, Kakeru (Rimu Kuwaki), died two