Two Kore-eda films in one year is a bit of treat! – (see here for the other).
Again this features children, but this time the adults are much more present than in I Wish. Essentially, two sets of very different parents discover that their sons were swapped in hospital just after they were born, and the decision must be made as to how the situation should best be resolved.
It examines parenthood, family and blood ties, and I enjoyed it very much.
Having said that, I actually think there’s a huge amount more that remains to be explored with this subject – which is not to say that Kore-eda failed at all, just that he chose to follow one thread, when there are so many others still dangling.