Cinemonster's original list
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a. Films 1-30 match Hooptober 9.0 criteria

b. Films 31-46 are additional films we are watching, each of which also relate to one of the criteria for Hooptober 9.0

c. Films 47-53 are carryover films that we aimed to watch, but didn’t actually see, during Hooptober 8.0 (2021)

d. Films 54-71 are just additional films we are aiming to watch as part of Hooptober this year.
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six (6) countries
1. Germany (German) - The Cabinet of Dr. Caligari (1920)
2. United Kingdom (English) - The City of the Dead (1960)
3. France/Italy (Italian) - The Whip and the Body (1963)
4. Italy (Italian) - Tenebre (1982)
5. Hong Kong (Cantonese) - Ebola Syndrome (1996)
6. Belgium/France/Italy/Spain (Spanish) - The Last Circus (2010)
7. South Korea (Korean) - Seoul Station (2016)
8. Iceland/Poland/Sweden (Icelandic) - Lamb (2021)
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eight (8) decades
1. 1920s - The Cabinet of Dr. Caligari (1920)
2. 1960s - The City of the Dead (1960)
3. 1980s - Tenebre (1982)
4. 1990s - Ebola Syndrome (1996)
5. 2010s - The Last Circus (2010)
6. 2020s - Lamb (2021)
7. 1950s - House on Haunted Hill (1959)
8. 1970s - Let's Scare Jessica to Death (1971)
9. 2000s - The Others (2001)
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two (2) insect centered films
1. Phenomena (1985)
2. Mimic (1997)
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one (1) horror film set in space or the future (relative to when it was released)
1. Event Horizon (1997)
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two (2) animated films
1. Seoul Station (2016)
2. Mad God (2021)
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one (1) bloodthirsty old person/people film
1. The Visit (2015)
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two (2) 1970s regional US films
1. Let's Scare Jessica to Death (1971)
2. The Last House on the Left (1972)
3. The Town That Dreaded Sundown (1976)
4. Creature from Black Lake (1976)
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the worst horror sequel from the 1990s, according to Letterboxd’s users, that we haven't seen and can access
1. The Birds II: Land's End (1994)
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one (1) German silent film
1. The Cabinet of Dr. Caligari (1920)
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five (5) films from six (6) directors (David Cronenberg, Ti West, Bill Rebane, Charles B. Pierce, William Grefé and/or Joy N. Houck Jr.)
1. David Cronenberg - Dead Ringers (1988)
2. Ti West - The Innkeepers (2011)
3. Bill Rebane - Blood Harvest (1987)
4. Charles B. Pierce - The Town That Dreaded Sundown (1976)
5. William Grefé - Stanley (1972)
6. Joy N. Houck Jr. - Creature from Black Lake (1976)
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two (2) Christopher Lee films
1. The City of the Dead (1960)
2. The Whip and the Body (1963)
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one (1) film with a real life musician or band in it
1. The Hunger (1983)
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one (1) Stephen King adaptation that is not the first go around
1. Carrie (2013)
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one (1) Lon Chaney, Sr. film
1. The Unknown (1927)
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and one (1) Tobe Hooper film
1. Salem's Lot (1979)
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extra credit per Cinemonster
1. The Last Circus (2010)
2. Silent Madness (1984)
3. Pennywise: The Story of IT (2022)
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and since we ended up with "only" 28 (30 when including Cinemonster’s extra credit) movies after satisfying all of the above criteria, we added the following films (all of which also meet or otherwise relate to at least one of the criteria above) to reach the magic number of 31 (actually 71 total (more below), in our case, but who's counting?!) films:
1. Them! (1954) [insects]
2. Alien (1979) [space and future]
3. Aliens (1986) [space and future]
4. Alien 3 (1992) [space and future]
5. eXistenZ (1999) [future AND Cronenberg]
6. The Haunted World of El Superbeasto (2009) [animated]
7. Hotel Transylvania (2012) [animated]
8. House (2022) [animated]
9. Don’t Breathe (2016) [bloodthirsty old person]
10. Mardi Gras Massacre (1978) [1970s regional]
11. Crimes of the Future (2022) [David Cronenberg]
12. Evictors (1979) [1970s regional and Charles B. Pierce]
13. V/H/S (2012) [Ti West (only one segment, though)]
14. Anaconda (1997) [real life musicians]
15. Queen of the Damned (2002) [real life musician]
16. Studio 666 (2022) [real life band]
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and additional extra credit just because
1. The Shining (1980) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
2. The Burning (1981) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
3. The Cabin in the Woods (2011) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
4. Crimson Peak (2015) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
5. The Witch (2015) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
6. Midsommar (2019) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
7. Werewolves Within (2021) [a film we set out to watch during Hooptober 8.0 (2021) that we failed to see]
8. It (1990) [rewatching prior to watching documentary for extra credit per Cinemonster]
9. The Thing (1982) [2022 anniversary film with a 4K UHD Blu-ray SteelBook releasing during Hooptober 9.0]
10. What Ever Happened to Baby Jane? (1962) [2022 anniversary film; also a bloodthirsty old person? TBD…]
11. Braindead (1992) [2022 anniversary film; also a bloodthirsty old person? TBD…]
12. The Lords of Salem (2012) [2022 anniversary film]
13. Sinister (2012) [2022 anniversary film]
14. Terrifier (2016) [rewatch prior to watching sequel when it releases in theaters (and/or on Screambox) during Hooptober 9.0]
15. Halloween (2018) [rewatch prior to watching third installment, Halloween Ends, when it releases in theaters during Hooptober 9.0; also a bloodthirsty old person? TBD… ]
16. Halloween Kills (2021) [because we have never seen it and we assume seeing it before watching the third installment, Halloween Ends (which releases in theaters during Hooptober 9.0), is necessary; also a bloodthirsty old person? TBD…]
17. X (2022) rewatch prior to watching sequel when it releases in theaters during Hooptober 9.0; also Ti West AND bloodthirsty old people...]
18. The Black Phone (2021) [because it came out this year and we haven’t seen it yet]
19. Fresh (2022) [because it came out this year and we haven’t seen it yet]
20. Nope (2022) [because it came out this year and we haven’t seen it yet]
21. Pearl (2022) [because it releases in theaters (and/or on Screambox) during Hooptober 9.0 anyway]
22. Terrifier 2 (2022) [because it releases in theaters (and/or on Screambox) during Hooptober 9.0 anyway]
23. Hellraiser (2022) [because it releases on Hulu during Hooptober 9.0 anyway]
24. Halloween Ends (2022) [because it releases in theaters during Hooptober 9.0 anyway; also a bloodthirsty old person? TBD…]
25. Bodies Bodies Bodies (2022) [because it came out this year and we haven’t seen it yet; 4K UHD Blu-ray releases during Hooptober 9.0]