Language tagging for the different dialects of certain languages -- Portuguese, French, etc -- is a known issue. Until there is a solution, all Portuguese titled images, regardless of whether its for Brazil or Portugal, should be tagged with Portuguese.

Hello Rebecca, I see there pt-pt and pt-br have different locales for content, but images are still not separated. Any news on this?

https://www.themoviedb.org/movie/10009-brother-bear/images/posters?language=pt

Per example here, I'm forced to see the Brazilian image in my media server "Irmão Urso" instead of "Kenai e Koda".

@ElPapoNautico If you want to be updated I would recommend following the Trello ticket: https://trello.com/c/pHOJdjPj/73-add-region-variant-to-image-languages