Several animals, including a cat, a dog, and a capybara, find themselves adrift on a boat, and they must learn to work together if they want to survive in a flooded, post-human world. Gints Zilbalodis’ animated adventure eschews Disney-fied anthropomorphism for stylized naturalism; in other words, these animals aren’t cute, they don’t talk, and there are certainly no musical numbers. The animals have distinct personalities — the cat’s wary and cautious, the dog’s a clumsy goofball, and so on — and they occasionally do non-animal things like learn to steer a boat. To the film’s credit, however, those things never feel amiss but rather, consonant with their animal natures. That naturalism enhances Flow’s sense of magical realism, as do the various bits of human civilization that the animals encounter, like art, giant statues, and empty cities. Flow is far from flashy — it’s the exact opposite of what we’ve come to expect from Disney, DreamWorks, and Pixar — but that only makes it all the more engrossing and fantastical.