Strangely, in The Appaloosa we don't get to see the Appaloosa pony all that much - the movie is not really about the horse. But I still wish they had shown him more. Truly a beautiful animal.
The pony in the movie was named Rojo.
Curiously enough, the recent film Appaloosa (2008) starring Ed Harris and Viggo Mortensen also has nothing to do with a horse either. One wonders if the title isn't a nod to The Appaloosa.
The history of the Appaloosa Horse breed is much too involved to put here, but the Nez Perce Indians were responsible for the North American breed.