If you loved Kids Return, try Boiling Point
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Takeshi Kitano, and they both carry the foreign gem mood tag, and they sit in Crime / Drama territory. If that's the register that drew you to Kids Return, the second film will land in a comparable space — through a different lens.
foreign gem
What Boiling Point is
A lanky benchwarmer with a gas-pump obsession stumbles from bunt to bust when the Yakuza lean on him. He flees south, only to find a scarred enforcer whose own ledger is equally red and who packs a meaner punch. After two hours of stares neither man wins, and nobody blinks first.

