Okay, "Old Yeller" isn't actually a good metaphor ... Some may argue with the inclusion of Christopher Guest's "Best in Show" ...

Dog is man’s best friend, or so the old adage goes. Dogs are often costars of their human counterparts as well. Canines pop up in films with frequency. Sometimes, they even star in movies.

Everyone loves dogs so why wouldn't ... Remarkably, Togo is played in the movie by Diesel, a direct ancestor of Togo himself, and puts in a performance the old boy would be proud of.