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A pet dies. Nekromantik
A pet dies. [Fix This]
A pet dies. Nemesis
A pet dies. [Fix This]
No pets die. Neon Maniacs
No pets die. [Fix This]
No pets die. Neverlake
No pets die. [Fix This]
No pets die. Neverwas
No pets die. [Fix This]
A dog is adopted and comes to no harm. New Year's Eve
A dog is adopted and comes to no harm.
No pets die. Newsies
No pets die. [Fix This]
No pets die. Next Friday
No pets die. [Fix This]
No pets die. Nieznany
No pets die. [Fix This]
Dexter the monkey dies but it's only temporary; he comes back to life a few minutes later. Night at the Museum: Secret of the Tomb
Dexter the monkey dies but it's only temporary; he comes back to life a few minutes later.
No pets die. Night Manager
No pets die. [Fix This]
Lots of pet dogs go insane and attack people.  Lots of pet dogs are killed. Night of the Wild
Lots of pet dogs go insane and attack people. Lots of pet dogs are killed.
No pets die. Night Shift
No pets die. [Fix This]
A pet dies. Nightbreed
A pet dies. [Fix This]
No pets die. Nightcrawler
No pets die. [Fix This]
A pet dies. Nightlight
A pet dies. [Fix This]
A pet dies. Nightmares
A pet dies. [Fix This]
A pet dies. Nightwatch
A pet dies. [Fix This]
No pets die. Nim's Island
No pets die. [Fix This]
The cat jumps on the building (you don't get to see him die on land).  The kid and father buy a cat and the cat is back. Nine Lives
The cat jumps on the building (you don't get to see him die on land). The kid and father buy a cat and the cat is back.
No pets die. Ninja Mouse
No pets die. [Fix This]
A pet is injured or appears dead but ultimately lives. Ninja vs. Ninja
A pet is injured or appears dead but ultimately lives. [Fix This]
No pets die. Ninjago
No pets die. [Fix This]
A dog is shot and killed as it is attacking a man. No Country for Old Men
A dog is shot and killed as it is attacking a man.
Numerous CGI animals appear in the film; several are killed. A deer-like creature is shot with an arrow and dies while a young boy looks on. An animal resembling an antelope is flung into the air, split apart and eaten by men before it hits the ground. A lamb-like animal is slaughtered on board the ark; we hear it being killed. Noah
Numerous CGI animals appear in the film; several are killed. A deer-like creature is shot with an arrow and dies while a young boy looks on. An animal resembling an antelope is flung into the air, split apart and eaten by men before it hits the ground. A lamb-like animal is slaughtered on board the ark; we hear it being killed.
A bird crashed into a window. Appears to be dead. Nocturnal Animals
A bird crashed into a window. Appears to be dead.
A pet is injured or appears dead but ultimately lives. Norbit
A pet is injured or appears dead but ultimately lives. [Fix This]
A pet is injured or appears dead but ultimately lives. Norm of the North
A pet is injured or appears dead but ultimately lives. [Fix This]
Numerous dogs are sacrificed for a ritual. Noroi: The Curse
Numerous dogs are sacrificed for a ritual.
Chandler's dog Roger appears with one of his daughters, who throws a toy into the water. Being the good boy that he is, Roger dutifully jumps into the water and retrieves the toy. North Shore
Chandler's dog Roger appears with one of his daughters, who throws a toy into the water. Being the good boy that he is, Roger dutifully jumps into the water and retrieves the toy.
The dog dies. Northern Lights
The dog dies.
A pet is injured or appears dead but ultimately lives. Northmen - A Viking Saga
A pet is injured or appears dead but ultimately lives. [Fix This]
Thousands of rats appear in the movie, none of them die (a few are kicked around when a coffin full of rats is opened, but they don't seem to be in pain). Apart from that, there are several horses, bats, pigs, a sheep and two kittens seen. We see none of the animals die. A man is said to feed on insects but we don't see it. 

Note that even though nothing happens to the animals on-screen, animal cruelty accured during its filming, most notably having the rats' fur dyed grey in boiling water, causing many of them to die. Nosferatu the Vampyre
Thousands of rats appear in the movie, none of them die (a few are kicked around when a coffin full of rats is opened, but they don't seem to be in pain). Apart from that, there are several horses, bats, pigs, a sheep and two kittens seen. We see none of the animals die. A man is said to feed on insects but we don't see it. Note that even though nothing happens to the animals on-screen, animal cruelty accured during its filming, most notably having the rats' fur dyed grey in boiling water, causing many of them to die.
A pet dies. Not Cool
A pet dies. [Fix This]
No pets die. Notting Hill
No pets die. [Fix This]
A rabbit is seen briefly during a magic trick but is not harmed. No other animals appear in the film. Now You See Me
A rabbit is seen briefly during a magic trick but is not harmed. No other animals appear in the film.
No pets die. Nurse
No pets die. [Fix This]
A dog is almost shot by a robotic drone but it runs away and lives. Oblivion
A dog is almost shot by a robotic drone but it runs away and lives.
A cat is gruesomely killed. Occupant
A cat is gruesomely killed.
A pet is injured or appears dead but ultimately lives. October Sky
A pet is injured or appears dead but ultimately lives. [Fix This]
In a flashback, a dog made ill by a haunted mirror dies off screen after being taken to the vet. In the present, another dog avoids the same fate by running away from the mirror to safety. Oculus
In a flashback, a dog made ill by a haunted mirror dies off screen after being taken to the vet. In the present, another dog avoids the same fate by running away from the mirror to safety.
Two dogs (Rottweilers) are shot and killed off screen after attacking a woman. A number of wild birds in cages appear in several scenes. In one fantasy sequence the birds appear frozen in ice but are seen alive again afterward. In a later scene the building containing the birds explodes, implying that they probably died. Odd Thomas
Two dogs (Rottweilers) are shot and killed off screen after attacking a woman. A number of wild birds in cages appear in several scenes. In one fantasy sequence the birds appear frozen in ice but are seen alive again afterward. In a later scene the building containing the birds explodes, implying that they probably died.
A pet is injured or appears dead but ultimately lives. Oddball
A pet is injured or appears dead but ultimately lives. [Fix This]
A pet mouse and puppy are both crushed to death. An old dog is shot and killed. Of Mice and Men
A pet mouse and puppy are both crushed to death. An old dog is shot and killed.
Some reindeer brought to the titular party survive the shenanigans unscathed. Office Christmas Party
Some reindeer brought to the titular party survive the shenanigans unscathed.
No pets die. O'Horten
No pets die. [Fix This]
A man brings his pet when he commits suicide. Old Boy
A man brings his pet when he commits suicide.
A pet dies. Old Dogs
A pet dies. [Fix This]
No pets die. Old Joy
No pets die. [Fix This]
Yes the dog dies. He's shot by his owner after contracting rabies. Old Yeller
Yes the dog dies. He's shot by his owner after contracting rabies.
A poodle dies when its suicidal owner jumps off a roof with it. The dog and owner are seen landing on a car after the jump. In another scene, a man eats a live octopus. Oldboy (2003)
A poodle dies when its suicidal owner jumps off a roof with it. The dog and owner are seen landing on a car after the jump. In another scene, a man eats a live octopus.
While imprisoned, the main character befriends a mouse and promises to protect her and her newly-born babies. Unfortunately in the next scene he's slipped a food tray which contains the mouse and her babies cooked like shrimp on a plate. Oldboy (2013)
While imprisoned, the main character befriends a mouse and promises to protect her and her newly-born babies. Unfortunately in the next scene he's slipped a food tray which contains the mouse and her babies cooked like shrimp on a plate.
Animated. After being thrown from a car, there is a moment when Oliver the cat seems dead but he survives. Two evil Doberman Pinschers are also thrown from a car onto electrified subway tracks; their fate is not clear but they were probably not as lucky as Oliver. Oliver & Company
Animated. After being thrown from a car, there is a moment when Oliver the cat seems dead but he survives. Two evil Doberman Pinschers are also thrown from a car onto electrified subway tracks; their fate is not clear but they were probably not as lucky as Oliver.
No pets die. Oliver Twist
No pets die. [Fix This]
A pet is injured or appears dead but ultimately lives. Oliver!
A pet is injured or appears dead but ultimately lives. [Fix This]
A dog is shot and killed. Olympus Has Fallen
A dog is shot and killed.
A St. Bernard dog befriended by Bond is not harmed. On Her Majesty's Secret Service
A St. Bernard dog befriended by Bond is not harmed.
A pet is injured or appears dead but ultimately lives. Once Upon a Once Upon
A pet is injured or appears dead but ultimately lives. [Fix This]
A Dalmatian is burned alive because it is foreign. We see the dog being put on a pile of things to be burned and we see the fire burning but we do not actually see the dog burning. Once Upon a Time in China II
A Dalmatian is burned alive because it is foreign. We see the dog being put on a pile of things to be burned and we see the fire burning but we do not actually see the dog burning.