original: letterboxd.com/cinemonster/list/hooptober-se7en-we-have-such-masked-socially/

6 countries
The Cabinet of Dr. Caligari (Germany)
The Witches (UK)
Kuroneko (Japan)
The Bird with the Crystal Plumage (Italy)
Sleepaway Camp (US)
Cronos (Mexico)
Raw (France)
Good Manners (Brazil)
Veronica (Spain)
La llorona (Guatemala)
Spiral (Canada)
Peninsula (South Korea)

6 decades
1920: The Cabinet of Dr. Caligari
50: Godzilla
60: The Witches; Kuroneko
70: The Bird with the Crystal Plumage
80: Sleepway Camp; The Texas Chainsaw Massacre 2; Pet Sematary
90: Popcorn; Cronos
00: 28 Days Later; 28 Weeks Later, Suicide Club
10: Sinister 1 and 2; The Flu; Annabelle and Annabelle Creation; Raw; Good Manners; Kuso; In Fabric; Suspiria; The First Purge; Zombieland Double Tap; It 2; La llorona; Spiral
20: The Invisible Man; Peninsula; 12 Hour Shift

7 2nd films of franchises
Peninsula
It Chapter Two
Zombieland: Double Tap
Annabelle Creation
Sinister 2
28 Weeks Later
The Texas Chainsaw Massacre 2

4 body horror films
Raw
Kuso
Suspiria
Cronos

2 films from this year
12 Hour Shift
Peninsula
The Invisible Man

3 disease based films
The Flu
28 Days Later
29 Weeks Later

The highest rated horror film from the 50s that you haven't seen and can access
Godzilla

1 film that is set entirely inside one location
12 Hour Shift

1 Invisible Person film
The Invisible Man

1 Non Dracula Hammer Film
The Witches

2 films with a black director or predominantly black cast or lead
Kuso
The First Purge

1 film with a movie theater in it
Popcorn

1 Tobe Hooper Films (There must ALWAYS be a Hooper film)
The Texas Chainsaw Massacre 2