Movies with a hint of zoo

[ikanon]

There is a movie (forgot the title) where Danny de Vito is a director who's wife is hell on earth, and has an idiotic poodle. She gets kidnapped, and he refuses to pay the ransom. But he still has the poodle. He asks his secretary to get a big male dog. "A return gift for her?" the secretaty asks. "No, he is for me" Danny replies in a tone that is meant to be misunderstood. He hopes the great dog will eat the poodle, but it will not work.