First time doing this, so let's see how this goes:

6 Countries
→ Let The Right One In (2008): Sweden
→ I Saw The Devil (2010): South Korea
→ Deep Red (1975): Italy
→ Diabolique (1955): France
→ Funny Games (1997): Germany
→ Onibaba (1964): Japan

8 Decades
→ Haxan (1922): 1920s
→ Cat People (1942): 1940s
→ The Golem (1915): 1910s
→ Spree (2020): 2020s
→ Ringu (1998): 1990s
→ Freaks (1931): 1930s
→ The Toxic Avenger (1984): 1980s
→ The Blob (1958): 1950s

2 Insect-Centered Films
→ Bite (2015)
→ The Fly (1986)

1 Horror Film Set in Space/The Future
→ Life (2017)

2 Animated Films
→ Mad God (2021)
→ Monster House (2006)

1 Bloodthirsty Old Person/People Film
→ The Visit (2015)

2 1970s Regional American Films
→ Alice Sweet Alice (1976)
→ Last House on the Left (1972)

The Worst 1990s Horror Sequel You Can Access
→ The Birds II: Land's End (1994)

1 German Silent Film
→ Geniune (1920)

5 Films By Auteurs
→ Bill Rebane: Blood Harvest (1987)
→ Charles B. Pierce: The Town That Dreaded Sundown (1976)
→ David Cronenberg: Videodrome (1983)
→ Ti West: House of the Devil (2009)
→ William Grefé: Whiskey Mountain (1977)

2 Christopher Lee Films
→ Corridors of Blood (1958)
→ Dracula (1958)

1 Film With a Real-Life Musician/Band
→ David Bowie: The Hunger (1983)

1 Stephen King Adaptation of a Story That Was Previously Adapted
→ Mercy (2014)

1 Lon Chaney Film
→ The Hunchback of Notre Dame (1923)

1 Tobe Hooper Film
→ Poltergeist (1982)

Original List