Old Yeller/YMMV


 * Adaptation Displacement
 * It Was His Sled: The dog contracts rabies and has to be shot.
 * Hey It's That Guy: Davy Crockett (or Daniel Boone, take your pick) and The Rifleman. Also Moochie from Spin And Marty. Tommy Kirk likely counts too, since he was in several other Disney films, like The Shaggy Dog.
 * Misaimed Marketing: Since 2005, Disney and Kroger have been selling Old Yeller Dog Food.