Mine would be 70’s Sci-fi, from Colossus: The Forbin Project to Mad Max. Leaning towards the dystopian ones.
All the ape films
Silent Running
A Boy and his Dog
Damnation Alley
Soylent Green
Rollerball
Time After Time (A joy ride compared to the others)
love em love em love em
Westworld
Futureworld
“Yup. They don’t make em like that anymore”-Robert Neville, The Omega Man
I think I’ve watched Star Trek enough that I pretty much no every referenced there is to know.
It’s my fall asleep to show and has been for a while now. So it all stays in my head.
Lately I’ve been enjoying late 60s/early 70s prison/tough guy/cop-type movies:
mmm
That’s a sweet list. You should also read the book “Papillon”, if you haven’t already. Very entertaining.
Great lists, love movies. My special niche would be compact films that are good story telling:
The Grey Fox
The Reivers
Wild Angels
The Bicycle Thief
Treasure of the Sierra Madre
The Rounders
The Dinner Game
The River
ETA: Time After Time is a gem
Comedies with quirky sensibilities
Big Lebowski
Harold and Maude
Rushmore
Mystery Train
Thanks, I may just do that.
mmm
I grew up watching movies mostly from the '40s through the '60s, so I tend more to “classic” films with “adult” themes, as opposed to today’s glut of “superhero” flicks. Examples:
Casablanca
The Best Years of Our Lives
Double Indemnity
Objective: Burma
Destination: Tokyo
Thirty Seconds over Tokyo
The Purple Heart
God Is My Co-Pilot
The Postman Always Rings Twice
Mildred Pierce
The Heiress
Gentleman’s Agreement
Captain from Castille
The Sea Hawk
Anatomy of a Murder
Experiment in Terror
Patterns
Later movies I consider “classics” include
Tunes of Glory
Paths of Glory
Lolita
Wait until Dark
American Graffiti (my second or third favorite of all time)
The Graduate
Norma Rae
Kramer vs Kramer
The King of Hearts
Gallipoli
Breaker Morant
Brit, French and Japanese gangsters
Film Noir
Generally obscure foreign dramas
1950s movies with a truck in a prominent role
Period Martial Arts fantasies
Pre-Code sleaze
Samurais
Any intelligent, well-written and well-made film on pretty much any subject can transcend my genre preferences in terms of compelling my interest in watching and/or enjoying it.
1930s Universal monster films and I’d say my minor is in the 1950s/60s Hammer monster movies.
Seen After Hours?
You may have an overactive sweet tooth, but you had good taste in movies. 
I’ve liked a lot of movies that didn’t make many ‘best of’ lists, but still were memorable. Seconds was nicely creepy…a little bit of its time, but nicely done. I like psychological horror over blood and guts, which I find boring.
Heh, I saw King of Hearts as a double bill with Marat/Sade.
Oh yeah
I have several “niches”, but the two big ones are Science Fiction and Historical Epics (especially from the 1950s to 1960s)
Sample lists (not exhaustive)
Science Fiction/Science Fantasy
Forbidden Planet
2001: A Space Odyssey
2010
Metropolis
The Quatermass Trilogy
Star Wars movies
Star Trek movies
The Thing (first two versions)
The Day of the Triffids (BBC version)
Robocop (first version)
The Day the Earth Stood Still (first version)
It! The Terror from Beyond Space
Aliens
The Terminator
Terminator II
Galaxy Quest
The Last Starfighter
Twenty Thousand Leagues Under the Sea (1954 Disney version)
The Lost World (1925 silent version, restored)
King Kong (1933 and 2005)
Son of Kong
Mighty Joe Young (both versions)
Historical Epics
The Seven Samurai
Spartacus
Ben Hur
El Cid
Cleopatra (1960 version)
The Ten Commandments (both versions, but only the “ancient” part of the silent)
Intolerance
War and Peace (The Russian version; although the BBC serial that I’m now watching is pretty good, too)
I can’t really pick a favorite niche/genre of film (Action, Adventure, Animated, Comedy, Drama, Fantasy, Historical, Horror, Noir, Sci-Fi, Thriller, Western). I like films from all genres if they are well acted, with good direction, and tell a compelling story.
I base my “must-watch” criteria on directors, writers, and actors I like. Although there are exceptions, I can usually count on them being involved in a movie I will enjoy. For example, if a movie is directed by Kubrick, Tarantino, or Scorsese (to name just a few), or stars Bette Davis, Anthony Hopkins, or Tom Hanks (to name just a few), I’m rarely disappointed.
I also keep my eye out for odd-ball Indie films that at least have a good story to tell.
The best I can do is pick a few sub-genres I don’t care for, like Horror/Splatter, Drama/Teen, and Action/Swashbuckler. Even here, there are exceptions.
The genre I’m most disappointed in is Horror. I love the genre, but there are woefully few horror films that actually scare me (but many horror books do). The only ones that come to mind are The Exorcist, The Shining, and Alien (only the first of the series).
I’m looking at you It! King’s book scared the pants off me (good thing I wasn’t in public at the time). None of the film adaptations come close. Bring Kubrick back to life (come to think of it, that would make a good horror flick) and make an It film as scary as the book…with a rewritten ending, of course.
There are so many movies that I enjoy that it would be hard for me to do a list. I will instead tell you what movie genres I do not like:
Sci-fi/Fantasy
Super Hero
Gory Horror/Slasher - I like spooky or eerie. I don’t need blood and guts.
Anything with torture
Spies
Musicals
Disaster
Martial Arts
Niches where I know there’s a high likelihood I’ll enjoy the film:
Niches that I actively avoid:
Ones that I wont watch IN my niche are 70’s Cronenburg films and Invasion of the Body Snatchers.(1978) the former are just too cold and leave a bad feeling in my stomach, and the latter is too damn depressing after you’ve seen it already.
When it was released in theaters, my friend and I watched “The Hunt For Red October” at least 10 times. And thus began my love of submarine movies. The Abyss, K19, Dad Boot, U-571, Ice Station Zebra, you name it, I’ll watch it.
For sure mine is action flicks starring kick ass women.
Aliens
Long Kiss Goodnight
The last Mad Max
Tank Girl
Lucy
Colombiana
Run Lola Run
La Femme Nikita
I’m sure I’ll think of more as soon as I hit submit.