A documentary, but that category doesn’t begin to do this movie justice. Four men with interesting, off-beat careers tell about their work. One tends a topiary garden full of animal-shaped hedges; one designs robots based on the same principles as insects; one is an expert in naked mole rats, mammals that live in ant-like colonies; and one is a tamer of lions and tigers. They end up saying something profound about humans, our fellow animals, and the life forms yet to come. Of all the movies I’ve seen, this one does the best job of capturing my own joy in watching and learning from animals.