These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Homeward Bound: The Incredible Journey
This movie contains examples of the following tropes:
Adaptation Displacement: Not many people are aware that this film is a remake of a 1963 film called The Incredible Journey.
What an Idiot: "There goes the bunny. There goes the pup. There goes breakfast."
Homeward Bound II: Lost in San Francisco
The Scrappy: Riley's old humans. Rather than doing something sensible with this puppy like keep him anyway and hope things work out in the end, give him to another family, or even turning him in to a shelter, they just drive out and abandon him on the road where anything can happen to him. In these movies that empathize with dogs, that's the equivalent of abandoning an unwanted baby in a dumpster.
Sequelitis: Averted, this movie is a decent sequel to the original.
The Woobie: Riley. Yes, he's bitter toward all humans and cynical about the pets' family, but he has the Dark and Troubled Past to explain it — being "left...on the coldest, rainest night of the year."