Phantasm IV: Oblivion
A dog is run over by a villain. There is a close up on the villain when the dog is run over so we only hear it happen. This scene appears in the Extended Cut DVD edition of the film.
A dog is killed when a monster rips it apart from the inside.
A horse belonging to a main character is tormented and trapped by killer ants, leading to a man having to shoot and kill it. An adorable mouse in a research center is devoured by the ants.
A rabbit is run over by a car offscreen.
Planes, Trains & Automobiles
After riding in the back of an open bed pickup truck in freezing temperatures, two men and the aggressive dog riding with them appear comically frozen for a few moments.
A dog dies in a horrific and bloody way. Great movie, one horrible scene.
During a chase scene a large dog is thrown at a man as a distraction. The man catches it and punts it away.
The dog, E-Buzz, does not die and is never in danger. We see a dead canary for a few minutes but since it is dead from the beginning of the film we are not counting it.
The Fishpaw family dog, Bonkers, hangs itself.
At the beginning of the film, a horse is injured and is put out of its misery by having its neck broken. At the end of the film, another horse amazingly survives a volcanic eruption that kills everything else.
Prey of the Chamelon
A woman walks up to a barking dog who is guarding the other side of the fence. The camera pans to the woman, and we see her raise a pistol. She then fired, and the dog stops barking. We then see her shoot through the fence lock.
A dog is lifted by its leash a few times, practically hanging it but it only squeals. When the dog walker is abducted, the dog runs off and it is later revealed that it was hit by a car and died. Also, a fawn/young deer is shot and killed.