October 1st. 1 - The Old Dark House (1932)
October 2nd. 2 - The Redeemer: Son of Satan (1976)
October 3rd. 3 - Prison (1987)
October 4th. 4 - Gremlins 2: The New Batch (1990). 5. Godzilla, King of the Monsters! (1956)
October 5th. 6 - Mothra vs Godzilla (1964). 7 - The Curse of Frankenstein (1957). 8. The Horror of Dracula (1958)
October 6th. 9 - Tremors (1990). 10 - Tremors 2: Aftershocks (1996)
October 7th. 11 - The Haunted Palace (1963)
October 8th. 12 - Dracula (1931). 13 - Joker (2019)
October 9th. 14 - Blood Theater (1984)
October 10th. 15 - The Blackcoat's Daughter (2015). 16 - The Black Cat (1931)
October 11th. 17 - Night of the Demon (1957). 18 - Necronomicon (1993)
October 12th. 19 - The Ghoul (1933). 20 - Madhouse (1974). 21 - Vampire Hunter D: Bloodlust (2000)
October 13th. 22 - Frankenstein Meets the Wolfman (1943). 23 - Bad Moon (1996). 24 - House of Frankenstein (1944).
October 14th. 25 - House of Dracula (1945)
October 15th. 26 - The Exorcist (1973). 27 - The Exorcist III (1990)
October 16th. 28 - The Mutilator (1985)
October 17th. 29 - Count Dracula (1977)
October 18th. 30 - Doctor Mordrid (1992). 31 - Bram Stoker's Dracula (1992)
October 19th. 32 - Subspecies (1991). 33 - Vampyres (2015)
October 20th. 34 - Bloodstone: Subspecies II (1993). 35 - Bloodlust: Subspecies III (1994)
October 21st. 36 - The Unnamable (1988)
October 22nd. 37 - Zombieland (2009). 38 - Zombieland: Double Tap (2019)
October 23rd. 39 - The Slumber Party Massacre (1982). 40 - Hello Mary Lou: Prom Night II (1987)
October 24th. 41 - The Hunger (1983) 42 - There's Nothing Out There (1991)
October 25th. 43 - The Dunwich Horror (1970). 44 - Cry of the Banshee (1970)
October 26th. 45 - The Vampire's Ghost (1945). 46 - Tremors 3: Back to Perfection (2001). 47 - Nadja (1994)
October 27th. 48 - Friday the 13th Part II (1981). 49 - Friday the 13th Part 3(1982)
From the potato sack to the hockey mask, Jason's killing spree begins. I don't know if the official title for the second one is "II" or "2", I've seen it both ways. Part 3 was released with the 3-D gimmick. I don't know how 3-D looked in theaters in the early 80s but I can only imagine it wasn't very good. The movie has a lot of scenes with objects pushed directly toward the camera, so you can tell it was made with that in mind even without the effect.