I strongly recommend the 2016 documentary titled 'Kedi', which is about the cats of Istanbul. Trailer: https://www.youtube.com/watch?v=lKq7UqplcL8

Seconding this, it's what I immediately thought of. It's a really beautifully made movie. And yes cats are front and center, but it's also using them as a window on humanity, the city of Instanbul and its living history from a very different perspective. It's a very sober film as well, celebrating life but also not shying away from death and the passing of time. The "cat's eye view" is a more 3D sort of feel from a lot of the typical explorations of a city, going at ground level, up and down buildings in 3D etc.

It's become a family favorite film we tend to watch each winter now. All ages can take something from it.