Something missing from this list? Add it!

Man hits a little kangaroo with his car. Long Weekend
Man hits a little kangaroo with his car.
Adolf Hitler returns. He shoots a pet dog because it is annoying him. Look Who's Back
Adolf Hitler returns. He shoots a pet dog because it is annoying him.
A pet is injured or appears dead but ultimately lives. Look Who's Talking Now
A pet is injured or appears dead but ultimately lives. [Fix This]
A pet is injured or appears dead but ultimately lives. Looney Tunes: Stranger Than Fiction
A pet is injured or appears dead but ultimately lives. [Fix This]
No pets die. Looper
No pets die. [Fix This]
No pets die. Lord of War
No pets die. [Fix This]
The family's dog is shot and killed just off screen by the father. Other live animals that are briefly seen but come to no harm: a turtle, a lamb and a crab. Lore
The family's dog is shot and killed just off screen by the father. Other live animals that are briefly seen but come to no harm: a turtle, a lamb and a crab.
No pets die. Los inocentes
No pets die. [Fix This]
The main character ends up living in a Veterinarian clinic.  There are kittens born and one seems to be in peril but ultimately is brought back to life.  Lots of other animals are seen but nothing bad happens to any of them. Loser
The main character ends up living in a Veterinarian clinic. There are kittens born and one seems to be in peril but ultimately is brought back to life. Lots of other animals are seen but nothing bad happens to any of them.
A pet dies. Lost River
A pet dies. [Fix This]
No pets die. Lost Souls
No pets die. [Fix This]
A few dogs and many horses appear briefly. None are harmed. Love & Friendship
A few dogs and many horses appear briefly. None are harmed.
No pets die. Love Actually
No pets die. [Fix This]
A pet is injured or appears dead but ultimately lives. Love Stinks
A pet is injured or appears dead but ultimately lives. [Fix This]
A dog is shot and a cat is hacked to pieces. Love Thy Neighbor
A dog is shot and a cat is hacked to pieces.
No pets die. Love, Rosie
No pets die. [Fix This]
A pet dies. Luciferous
A pet dies. [Fix This]
Nature documentary footage of animals is shown throughout the film; in one scene, a cheetah chases down, kills and carries off a gazelle. Lucy
Nature documentary footage of animals is shown throughout the film; in one scene, a cheetah chases down, kills and carries off a gazelle.
A pet dies. Luther
A pet dies. [Fix This]
No pets die. Mac and Me
No pets die. [Fix This]
No pets die. Machete
No pets die. [Fix This]
No pets die. Machete Kills
No pets die. [Fix This]
Mad Max's family dog is eviscerated and hung from a tree. Mad Max
Mad Max's family dog is eviscerated and hung from a tree.
The dog is shot and killed by a crossbow while trying to protect Max. Mad Max 2: The Road Warrior
The dog is shot and killed by a crossbow while trying to protect Max.
This is a hard one to rate. No pets appear, but in the first minutes of the film a two-headed, CGI lizard is stomped on and then eaten while still wriggling. Later a CGI beetle is eaten alive as well. Mad Max: Fury Road
This is a hard one to rate. No pets appear, but in the first minutes of the film a two-headed, CGI lizard is stomped on and then eaten while still wriggling. Later a CGI beetle is eaten alive as well.
In a comic scene, several cute animals are eaten: a hummig bird, a mouse and a duckling. We don't actually see the mouse being eaten but only being grabbed by an eagle that flies away carrying it. The other eatings are on-screen, the animals are swallowed whole. Madagascar
In a comic scene, several cute animals are eaten: a hummig bird, a mouse and a duckling. We don't actually see the mouse being eaten but only being grabbed by an eagle that flies away carrying it. The other eatings are on-screen, the animals are swallowed whole.
A pet dies. Madeline
A pet dies. [Fix This]
A pet dies. Madhouse
A pet dies. [Fix This]
A pet dies. Maggie
A pet dies. [Fix This]
No harm comes to Lucifer the cat or Ichabod the tortoise. There is an odd sequence where the film cuts back and forth between shots of Ichabod eating grass and an approaching lawnmower, but the lawnmower ends up hitting a tree, not the tortoise. Magic Christmas Tree
No harm comes to Lucifer the cat or Ichabod the tortoise. There is an odd sequence where the film cuts back and forth between shots of Ichabod eating grass and an approaching lawnmower, but the lawnmower ends up hitting a tree, not the tortoise.
A pet dies. Magic Magic
A pet dies. [Fix This]
A pet pig is not harmed, though it does eat some vomit. Magic Mike
A pet pig is not harmed, though it does eat some vomit.
No pets die. Magic Mike XXL
No pets die. [Fix This]
One of the magicians in the documentary has a 14 year old German Shepherd he has to put down. Magicians: Life in the Impossible
One of the magicians in the documentary has a 14 year old German Shepherd he has to put down.
A pet dies. Magnolia
A pet dies. [Fix This]
No pets die. Major Payne
No pets die. [Fix This]
A pet is injured or appears dead but ultimately lives. Malavita
A pet is injured or appears dead but ultimately lives. [Fix This]
No pets die. Malcolm X
No pets die. [Fix This]
One of the main characters is a raven that is also transformed into several other animals and creatures such as a wolf or a dragon, and also into a human. He is in peril throughout the movie, threatened and attacked, but survives unharmed. Maleficent
One of the main characters is a raven that is also transformed into several other animals and creatures such as a wolf or a dragon, and also into a human. He is in peril throughout the movie, threatened and attacked, but survives unharmed.
No pets die. Mallrats
No pets die. [Fix This]
Despite all the awful things happening to the family, their pet dachshund, Handsome, is completely unharmed. A tracking dog named Bird is seen briefly and doesn't end up hurt either. (A girl eats a moth.) Mama
Despite all the awful things happening to the family, their pet dachshund, Handsome, is completely unharmed. A tracking dog named Bird is seen briefly and doesn't end up hurt either. (A girl eats a moth.)
No pets die. Mamma Mia!
No pets die. [Fix This]
A dog is shot (off screen) and another is run over. The film also contains hare coursing, where dogs chase live hares. Man About Dog
A dog is shot (off screen) and another is run over. The film also contains hare coursing, where dogs chase live hares.
No pets die. Man Bites Dog
No pets die. [Fix This]
Two dogs appear and neither are harmed. One dog survives a vehicle crashing through a house and In flashbacks a different dog is rescued from a tornado. (A flying alien creature is injured and makes a crash-landing.) Man of Steel
Two dogs appear and neither are harmed. One dog survives a vehicle crashing through a house and In flashbacks a different dog is rescued from a tornado. (A flying alien creature is injured and makes a crash-landing.)
No pets die. Man on a Ledge
No pets die. [Fix This]
When a dog is barking, a  person makes as though they are going to throw their shoe at it, but they do not. Manchester by the Sea
When a dog is barking, a person makes as though they are going to throw their shoe at it, but they do not.
A pet dies. Manderlay
A pet dies. [Fix This]
A pet is injured or appears dead but ultimately lives. Manglehorn
A pet is injured or appears dead but ultimately lives. [Fix This]
It is mentioned that a cat and possibly a dog* were killed, but we're not counting it as they died before the movie began and we never see either alive or dead, except for a few brief shots of them when someone watches old home video footage. A live but sedated tiger is seen. (*At one point, someone says that the dog is at the vet because of a puncture wound; the wording makes it sound like the dog could still be alive.) Manhunter
It is mentioned that a cat and possibly a dog* were killed, but we're not counting it as they died before the movie began and we never see either alive or dead, except for a few brief shots of them when someone watches old home video footage. A live but sedated tiger is seen. (*At one point, someone says that the dog is at the vet because of a puncture wound; the wording makes it sound like the dog could still be alive.)
A cat's eye is ripped out (it looks obviously fake) and eaten by a disturbed man. The cat is later concreted into the wall along with a corpse, but is later discovered and gets out. Maniac (1934)
A cat's eye is ripped out (it looks obviously fake) and eaten by a disturbed man. The cat is later concreted into the wall along with a corpse, but is later discovered and gets out.
No pets die. Maniac (1980)
No pets die. [Fix This]
No pets die. Maniac Magee
No pets die. [Fix This]
A pet is injured or appears dead but ultimately lives. Manny Lewis
A pet is injured or appears dead but ultimately lives. [Fix This]
A cat and pet parrot are eaten alive by a dangerous genetically altered dog. The dog is shot and dies. Man's Best Friend
A cat and pet parrot are eaten alive by a dangerous genetically altered dog. The dog is shot and dies.
A pet dies. Margin Call
A pet dies. [Fix This]
Marie Antoinette's dogs are well-treated and do not die. Marie Antoinette
Marie Antoinette's dogs are well-treated and do not die.
Dog is euthanized due to an incurable illness. Marley & Me
Dog is euthanized due to an incurable illness.
A pet dies. Marlowe
A pet dies. [Fix This]
No pets die. Marmaduke
No pets die. [Fix This]
A pet dies. Marnie
A pet dies. [Fix This]
The president's dog is killed and a dog's head is removed and replaced with that of a human. Mars Attacks!
The president's dog is killed and a dog's head is removed and replaced with that of a human.
A pet is injured or appears dead but ultimately lives. Marshall the Miracle Dog
A pet is injured or appears dead but ultimately lives. [Fix This]
Two cats are killed off screen. Martha Marcy May Marlene
Two cats are killed off screen.
A pet dog dies of natural causes. Martian Child
A pet dog dies of natural causes.
A pet dies. Mary and Max
A pet dies. [Fix This]
No pets die. Mary Poppins
No pets die. [Fix This]