Cats & Dogs (2001)

In the movie "Cats & Dogs" released in 2001, the story revolves around the secret war between cats and dogs, who are actually highly intelligent and technologically advanced. The main conflict arises when a scientist creates a formula that could eradicate dog allergies, leading both sides to try to control or destroy it. The film follows the mission of a Beagle puppy named Lou who teams up with a group of dogs to prevent the evil cats from using the formula for their own advantage.