Has anyone thought about this? I would like to create a new movie rating system, that will be easy to pick the right movies.
What is needed is a movie pick service and that starts with asking what genres you hate. Then get into specific movies you hate to further refine the list of things I don't want to see but at the same time clarifying questions to narrow down the like/dislikes because there are movies that combine elements from different genres. For example, The Joker could be considered in the #superhero, #sad, #mind-fuck categories and if you like #superhero movies but strongly dislike #sad and #mind-fuck then those should be weighted higher and the system shouldn't show The Joker on any personal lists.
The service should have an unfiltered search so people can just find stuff too.
Read some reviews and critics to get a hint on the vibes and content of a movie and whether it matches your personal taste. IMDB has them both.
https://thenextweb.com/syndication/2018/02/04/imdb-rotten-to...
The more movies you watch, the better your intuiton for predicting if you'll like the movie by watching the trailer will get.
I found imdb scores are good to have a general idea. Eg I probably won't like a movie with a 5.9 score, even if the trailer seemed good. Or I'll give a movie with a >8 score a chance if the trailer is okay, but sometimes I know a movie is not for me by the trailer, no matter how high the score is.
For everything in between I decide mostly by the trailer and the past movies of the director.
I used to be a voracious movie consumer when I was younger, but it's due to the fact there was a backlog. Now there is none.
Also, if you like a particular movie/genre then it's best to google for similar ones. People tend to recommend 'if you like X then you should also check out Y'. I've found this to be a decent indicator.
But like others have said the easiest way is to find a friend/critic who has similar taste to you and just see what they recommend.