Pleasant people doing pleasant things and there's not much drama and you just kind of feel lovely about the world.
I got a lot of recommendations for films, most of which seemed to not have pleasant people in them or leave you feeling lovely or felt a bit raucous, but clearly other people felt like they belonged, so I've started Gentle Cinema 2: Crowdsourced Edition. If you like these films, then maybe you'll like some of those too :)