Cats & Dogs is a 2001 spy-comedy film that revolves around the age-old rivalry between cats and dogs. The movie portrays an intense battle for dominance between the two species, initiated by a professor's creation of a vaccine that eliminates human allergies to dogs. Led by Mr. Tinkles, the cats and the dogs engage in an epic struggle for pet supremacy, resulting in a flurry of fur and espionage tactics.