6 countries (other than Italy or US)
Australia- Roadgames
France- High Tension
Canada- Rabid (2019)
Mexico- Cured of Fears
Russia- Night Watch
United Kingdom- The Wicker Man

9 decades-
1920s- The Cat and the Canary

1930s- The Mummy and The Wizard of Oz

1940s- I Walked With a Zombie

1960s- Bloodlust! and Rosemary's Baby

1970s- The Wicker Man, Shock Waves, Eyes of Laura Mars, and The Great Alligator

1980s- Roadgames, Poltergeist, Alone in the Dark, Night of the Comet, Near Dark, and Pumpkinhead

1990s- Cured of Fears, Ernest Scared Stupid, Bram Stoker's Dracula, Mary Shelley's Frankenstein, Tales from the Hood, From Dusk Till Dawn, and Pinocchio's Revenge

2000s- Cry Baby Lane, High Tension, and Night Watch

2010s- The Battery, The Void, Rabid, and VFW

5 Zombie Films
I Walked With a Zombie, Shock Waves, Night of the Comet, The Battery, and Rabid (2019)

3 cult or conspiracy horror films
Rosemary's Baby, The Wicker Man, and The Void

1 film from a Black director with a Black lead
Tales from the Hood

1 film from a Mexican or Central American director
Cured of Fears

1 Canadian film
Rabid (2019)

1 former Soviet state film (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan)
Night Watch

The most popular film from the 1940s that you haven't seen and can access.
I Walked With a Zombie

2 Post Apocalyptic horror films
Night of the Comet and The Battery

1 Film with dreams or a dream as part of the plot
Eyes of Laura Mars

1 The animals are pissed at us film
The Great Alligator

1 Silent film
The Cat and the Canary

4 based on Novels
The Wizard of Oz, Rosemary's Baby, The Wicker Man, and Night Watch

Any film from THIS list that you haven't seen.
High Tension

1 Ernesto Gastaldi written film
The Great Alligator

1 film from 1932
The Mummy

I have never made a specific film a part of this before, but WIZARD of OZ ('39)

And 1 Tobe Hooper Film (There must ALWAYS be a Hooper film)
Poltergiest