It starts out sad and gets more depressing from there. Yet there’s something compelling about “The Art of Racing in the Rain” (2019). As hypnotic as a puppy’s gaze, it sinks its teeth into you and will not release until it makes good on its unspoken aim: You will cry. Narrated by Kevin Costner, the golden retriever of American actors, it’s a dogography steeped in mysticism, tracing the life of Enzo from the moment he meets his race-car-driving, chronically unlucky Job of a human until the two take one last, precious, lap around the track. And, perhaps, beyond. Good boy.