Have you seen his other show, Japanese Tales of the Macabre (on Netflix)
I have. It's pretty hit or miss. For starters, the source material isn't pulling from his best stuff all the time. Ito definitely has a "lets try this and see how it goes" method, and some things hit better than others. For another, the short format works well with some stories but not with others. For example, I think the show did a good job with Hanging Ballons, but missed the mark on it's version of Tomie.
What about documentaries? True crime, nuclear disasters, astornomical phenomena that could end the earth in the blink of an eye, that sort of thing
We were talking earlier about ultimate horror films that haven't been made yet and I think the ultimate ultimate just might be if the pop science book The Selfish Gene was eventually turned into a documentary. It's probably the scariest thing I've ever read.
I'd be open to a discussion on, but most of the examples I can think of are series rather than movies. In practice, documentary-as-horror often ends up being propaganda, which isn't an area worth getting into.
The Nic Cage version, or the black and white german version where only the color is in color
There's a lot of versions of The Color out of Space, but I haven't seen any versions I'd consider great. My favorite version is the Stephen King section from Creepshow, but that's really about appreciating the b-movie style a la
@Dannyalcatraz. The Nic Cage version was pretty good. Annihilation, OTOH, is another movie in my "highly overrated" list; I was very disappointed after some of the good reviews I read about it.
The Fly and Alien are great body horror movies (anything by Cronenberg is usually good for that but the fly is extremely well executed IMO).
For body horror, you can go the hyper-realistic route or the over-the-top route. I would say Martys (French) and Dumplings (China) are the extreme end for the realistic route. The Thing, The Fly, and Hellraiser (various) would be my top recomendations the other. Society and Re-Animator are also really fun, but that's starting to move into the "camp" direction.