1. Day of the Dead
A small group of scientists and soldiers take refuge in an underground missile silo where they struggle to control the flesh-eating dead that walks the Earth above.
It has an average vote of 7.038 on TMDB.
2. Night of the Living Dead
A group of strangers trapped in a farmhouse find themselves fending off a horde of recently dead, flesh-eating ghouls.
It has an average vote of 7.615 on TMDB.
3. Dawn of the Dead
A group of survivors take refuge in a shopping mall after the world is taken over by aggressive, flesh-eating zombies.
It has an average vote of 7.055 on TMDB.
4. Land of the Dead
The world is full of zombies and the survivors have barricaded themselves inside a walled city to keep out the living dead. As the wealthy hide out in skyscrapers and chaos rules the streets, the rest of the survivors must find a way to stop the evolving zombies from breaking into the city.
It has an average vote of 6.191 on TMDB.
5. The Crazies
Citizens of a small town are infected by a biological weapon that causes its victims to become violently insane. As uninfected citizens struggle to survive, the military readies its own response.
It has an average vote of 6 on TMDB.
6. Martin
Martin, who believes himself to be a vampire, goes to live with his elderly and hostile cousin in a small Pennsylvania town where he tries to redeem his blood-craving urges.
It has an average vote of 6.822 on TMDB.
7. Monty Python and the Holy Grail
King Arthur, accompanied by his squire, recruits his Knights of the Round Table, including Sir Bedevere the Wise, Sir Lancelot the Brave, Sir Robin the Not-Quite-So-Brave-As-Sir-Lancelot and Sir Galahad the Pure. On the way, Arthur battles the Black Knight who, despite having had all his limbs chopped off, insists he can still fight. They reach Camelot, but Arthur decides not to enter, as "it is a silly place".
It has an average vote of 7.807 on TMDB.
8. Halloween
Fifteen years after murdering his sister on Halloween Night 1963, Michael Myers escapes from a mental hospital and returns to the small town of Haddonfield, Illinois to kill again.
It has an average vote of 7.557 on TMDB.
9. Braindead
When a Sumatran rat-monkey bites Lionel Cosgrove's mother, she's transformed into a zombie and begins killing the entire town while Lionel races to keep things under control.
It has an average vote of 7.4 on TMDB.
10. One Flew Over the Cuckoo's Nest
A petty criminal fakes insanity to serve his sentence in a mental ward rather than prison. He soon finds himself as a leader to the other patients—and an enemy to the cruel, domineering nurse who runs the ward.
It has an average vote of 8.421 on TMDB.
11. Close Encounters of the Third Kind
After an encounter with UFOs, an electricity linesman feels undeniably drawn to an isolated area in the wilderness where something spectacular is about to happen.
It has an average vote of 7.36 on TMDB.
12. The Experiment (Das Experiment)
Das Experiment is a shocking psycho thriller about the potential for brutality that humans hide. Even more shocking is the fact that it’s based on an actual occurrence — a 1971 psychological experiment at Stanford University that was aborted prematurely when the experimenters lost control.
It has an average vote of 7.394 on TMDB.
13. Arsenic and Old Lace
Mortimer Brewster, a newspaper drama critic, playwright, and author known for his diatribes against marriage, suddenly falls in love and gets married; but when he makes a quick trip home to tell his two maiden aunts, he finds out his aunts' hobby - killing lonely old men and burying them in the cellar!
It has an average vote of 7.646 on TMDB.
14. Into the Abyss
We do not know when and how we will die. Death Row inmates do. Werner Herzog embarks on a dialogue with Death Row inmates, asks questions about life and death and looks deep into these individuals, their stories, their crimes.
It has an average vote of 6.894 on TMDB.
15. Plan 9 from Outer Space
In California, an old man grieves the loss of his wife and on the next day he also dies. However, the space soldier Eros and her mate Tanna use an electric device to resurrect them both and the strong Inspector Clay that was murdered by the couple. Their intention is not to conquest Earth but to stop mankind from developing the powerful bomb “Solobonite” that would threaten the universe. When the population of Hollywood and Washington DC sees flying saucers on the sky, a colonel, a police lieutenant, a commercial pilot, his wife and a policeman try to stop the aliens.
It has an average vote of 4.2 on TMDB.
16. The Hands of Orlac (Orlacs Hände)
A world-famous pianist loses both hands in an accident. When new hands are grafted on, he is horrified to learn they once belonged to a murderer.
It has an average vote of 6.856 on TMDB.
17. Red Rock West
When a promised job for Texan Michael fails to materialize in Wyoming, Mike is mistaken by Wayne to be the hitman he hired to kill his unfaithful wife, Suzanne. Mike takes full advantage of the situation, collects the money, and runs. During his getaway, things go wrong, and soon get worse when he runs into the real hitman, Lyle.
It has an average vote of 6.676 on TMDB.
18. The Day of the Triffids
After an unusual meteor shower leaves most of the human population blind, a merchant navy officer must find a way to conquer tall, aggressive plants which are feeding on people and animals.
It has an average vote of 6.143 on TMDB.
19. Planet of the Vampires (Terrore nello spazio)
After landing on a mysterious planet, a team of astronauts begin to turn on each other, swayed by the uncertain influence of the planet and its strange inhabitants.
It has an average vote of 6.5 on TMDB.
20. The Bad Seed
Air Force Colonel Kenneth Penmark and his wife, Christine, adore their daughter Rhoda, despite her secret tendency for selfishness. Christine keeps her knowledge of her daughter's darker side to herself, but when a schoolmate of Rhoda's dies mysteriously, her self-deception unravels.
It has an average vote of 7.1 on TMDB.