Cinemonster's original list
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10 'Anniversary Films' (Release years end in an 8, excluding 2018)
1. Abbott and Costello Meet Frankenstein (1948)
2. The Blob (1958)
3. Dracula (1958)
4. Night of the Living Dead (1968)
5. Dawn of the Dead (1978)
6. Halloween (1978)
7. Invasion of the Body Snatchers (1978)
8. They Live (1988)
9. Martyrs (2008)
10. Let the Right One In (2008)
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6 countries
1. Nosferatu (1922) (Germany)
2. Torso (1973) (Italy)
3. Hellraiser (1987) (UK)
4. The Host (2006) (South Korea)
5. Let the Right One In (2008) (Sweden)
6. American Mary (2012) (Canada)
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6 decades
1. Nosferatu (1922)
2. Dracula (1958)
3. The Birds (1963)
4. Torso (1973)
5. Poltergeist (1982)
6. Annabelle: Creation (2017)
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6 films from before 1970
1. Nosferatu (1922)
2. Abbott and Costello Meet Frankenstein (1948)
3. The Blob (1958)
4. Dracula (1958)
5. The Birds (1963)
6. Night of the Living Dead (1968)
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6 films from the following: Romero, Cronenberg, Clive Barker, Terence Fischer, Sergio Martino, Bill Lustig (mix-and-match, or all one)
1. Dracula (1958) (Fisher)
2. Night of the Living Dead (1968) (Romero)
3. Torso (1973) (Martino)
4. Maniac (1980) (Lustig)
5. The Fly (1986) (Cronenberg)
6. Hellraiser (1987) (Barker)
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2 flying things that kill you films
1. The Birds (1963)
2. The Mist (2007)
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1 silent film as a tribute to A Quiet Place
1. Nosferatu (1922)
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1 aquatic menace film as a tribute to Meg
1. The Host (2006)
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2 women directed films
1. Pet Sematary (1989)
2. American Mary (2012)
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1 inanimate object comes alive film
1. Annabelle: Creation (2017)
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1 film with Barbara Crampton in it
1. Re-Animator (1985)
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And 2 Tobe Hooper Films (There must ALWAYS be a Hooper film)
1. Poltergeist (1982)
2. The Texas Chainsaw Massacre 2 (1986)
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And since I ended up with only 24 movies after satisfying all of the above criteria, I added the following films (all of which are also anniversary films) to reach the magic number of 31 films.
1. Rosemary's Baby (1968)
2. I Spit on your Grave (1978)
3. Child's Play (1988)
4. Brain Damage (1988)
5. Ringu (1998)
6. Eden Lake (2008)
7. Pontypool (2008)
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Extra credit per Cinemonster
1. Tales from the Hood (1995)
2. Tales from the Hood 2 (2018)
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And additional extra credit just because
1. Suspiria (1977) (need to see the original before the remake hits theaters)
2. Annabelle (2014) (because we have never seen it and we assume seeing it before I watch Annabelle: Creation is necessary)
3. Bad Times at the El Royale (2018) (because it releases in theaters during the month of October anyway)
4. Halloween (2018) (because it releases in theaters during the month of October anyway)
5. Suspiria (2018) (because it releases in theaters during the month of October anyway)