In the end, I placed movies that fit the showdown, but where the male friendships are between a grown-up man and a boy, in a nearly father-son relationship. The Karate Kid obviously has a friendship like that, but there is also Cobra Kai bully brotherhood.

I also made a list for this Showndown challenge only with Brazilian movies (and that is why I did not include any film from Brazil here): boxd.it/GPV1c