The Ugly Dachshund (1966)

Jones and Pleshette are married dog lovers who raise Dachshunds. When Ruggles convinces them to take a Great Dane puppy, the fun begins! The Great Dane thinks he is a Dachshund because he has been raised with them--just imagine what happens when such a large dog acts as if he is small! Kids will love this wacky Disney film.