6 countries (other than Italy or US):

Godzilla, Mothra, King Ghidorah: Giant All Monsters All Out Attack (Japan)
Meander (France)
Monolith (Australia)
Nails (Russia)
The Robot vs. The Aztec Mummy (Mexico)
Teenage Hooker Became Killing Machine (South Korea)

9 decades:

Doctor X (1930s)
The Wolf Man (1940s)
The Incredible Shrinking Man (1950s)
The Crazies (1970s)
Halloween III: Season of the Witch (1980s)
eXistenZ (1990s)
Splice (2000s)
Curve (2010s)
Soft and Quiet (2020s)

5 Zombie Films:

The Crazies
28 Years Later
Dawn of the Dead
Re-Animator
Survival of the Dead

3 cult or conspiracy horror films

Monolith
Halloween III: Season of the Witch
Body Snatchers

1 film from a Black director with a Black lead:

The Angry Black Girl and Her Monster

1 film from a Mexican or Central American director:

The Robot vs. The Aztec Mummy

1 Canadian film:

Come True

1 Russian or former Russian state film:

Nails

The most popular film from the 1940s that you haven't seen and can access..:

The Wolf Man

2 Post Apocalyptic horror films:

28 Years Later
Day The World Ended

1 Film with dreams or a dream as part of the plot:

Come True

1 The animals are pissed at us film:

The Food of the Gods

1 Silent film:

A Daughter of Destiny

4 based on Novels:

The Long Walk
The Call of Cthulhu
A Daughter of Destiny
The Food of the Gods

Any film from THIS list that you haven't seen:

Heretic

1 Ernesto Gastaldi written film:

Death Walks on High Heels

1 film from 1932:

Doctor X

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):

Djinn