Love and Monsters (2020)
This is a sort of young adult post-apocalyptic romcom. I know they've pushed the ages of the leads to the mid-20s, but they're clearly designed to be sort of teen. The lead, "Joel", is in some form of arrested development having never moved on from the day monsters took over the world, pining over his girlfriend Aimee who he was separated from many years previously. Humanity lives in bunkers, hiding and defending themselves from mutated giant bugs. Joel is, well, useless. But he keeps in contact with Aimee (who has grown to be her bunker's leader), and when she reports she's in trouble, off Joel sets for a 7-day yomp through the infested country to help. And thus, bildungsroman as Joel finally learns to grow up. In a humorous, slapstick, fashion obviously - this film is not very serious. And he finds a lovely, surprisingly well groomed, friendly and useful dog, because young adult stuff has a thing for cute and helpful pets. All progresses ends as you expect. Everything is so cliched and/or telegraphed so clearly an adult should have no problem predicting everything and how it will resolve in good time. It's basically a pretty baseline popcorn muncher for a young-ish audience, undoubtedly losing plenty of impact for an older watcher.