The main character's sled dog dies of exhaustion.
Assassin struggles with dog then dog gets shot in head.
The main character's dog disappears and is believed dead but turns up again at the end of the film, alive and unharmed.
Stranger Than Fiction
Several clips from actual nature documentaries appear,. The clips show animals killing other animals, including a clip of crabs attacking a wounded bird.
A deer in the woods is gravely injured and disappears. It is later implied the deer is being eaten.
A boy contemplates poisoning a dog but doesn't because the dog has already been hit and killed by a train (the death occurs off-screen). A trash bag that contains the dog's remains is seen.
When a tree branch is pulled back and then released, a cat is flung into the air and lands off-screen with a crash.
A baby dragon has its throat slit by the protagonist on-screen, later its mother is stabbed in the head and killed after a fight. Depending on how you interpret the movie, this scene may or may not be a dream.
Meathead, a bulldog, is beat up offscreen by a bad guy (we see him limping afterward) but lives.
A hitman's faithful pitbull saves a life by biting a bad guy who is driving a car with a kidnapped girl. The car crashes and burns, killing the dog and the bad guy, but the girl is saved.
All the dogs in town, including the main character's dog, run away. It is later mentioned that they are found in nearby towns, presumably unharmed.
A parrot catches fire after a photo is taken of it. Two doves are accidentally put on an electric fence and explode. When an old woman is accidentally pushed into a wood chipper, she holds her dog on a leash and it is pushed further into the machine. We don't see its death but it is implied. A turkey is stuffed with a live cat. Later on, a turkey is eaten at the dinner, it may be the one stuffed with the cat, although it looks like a normal one. When a woman farts, a bird falls down to the ground, it may or may not be dead. The main character vomits into an aquarium full of fishes. There are many other animals of all kinds seen in the movie but they are unharmed.
Two dogs are abandoned in Luthor's hideout. When they return, it is discovered that one of the dogs has eaten the other. Later, when Luthor and his girlfriend are stranded, he suggests they should eat the survivor. Superman intervenes before this can occur.
A bat that attacks the protagonist gets killed by her when she hits it with a chair. It may not have been a real bat though due to the movie's occult themes including witches and black magic. Several maggots cover the floor and when the room is entered some appear to be stepped on. The maggots are real and most likely have been stepped on for real. In one scene, a dog is accused of having bitten a boy, and is threatened to be killed if its owner doesn't leave the house. He does so and the dog is fine. However, later on the dog is possessed by an evil force and kills its owner, leaving its fate unknown. There is no implication of its death.
Sweet Home Alabama
The dog Bryant does not die. There is a touching scene at a pet cemetery where the main character visits Byrant's predecessor, Bear, who died years ago. A story is told about a cat, Fuzz, that had dynamite strapped to it. The dynamite exploded but the cat was said to have escaped (a scraggly-looking cat, possibly Fuzz, is seen at the end of the film).
A dead dalmatian is shown at the beginning of the movie.
A deer is hit by a car and appears dead, but comes back to life and destroys the car.