Probably not for today's movie-goers.

Rating: 10/10 (27 November 2019)

First things first: if someone claims this movie has no plot or story to tell, then they probably dont have a very deep understanding of story telling, nor a great breadth of knowledge on how different people are affected in different ways by varying acts. To say you don't like the movie because you're bored or disinterested is fine, it's not your cup of tea; but to say it has no plot or story is an embarrassment to anyone who would utter such nonsense.
Once Upon A Time In Hollywood has one story with 3 different character arcs. The way they all exist so independently and yet so intrinsically is a fantastic capture of the way real life works. These arcs are revealed rather subtly, and to some, possibly too slowly. I suspect for today's audiences it would have been better if Optimus Prime showed up and told DiCaprio's character that he had the power inside himself all along before he goes into some kick-ass scene.
The trouble with Tarantino's storytelling for some is that he tells 3 different stories that aren't the point of the film. So when the ending comes it may seem disjointed to those who need movies spelled out for them. But the point of the film is driven by the 3 separate arcs that the individual characters went through. Had they not gone through their own stories, then this magical once upon a time would have been rather flat. But as it stands, real people experienced various things that brought them all to a beautiful intersection of life.
I would compare this movie to something like Midnight Cowboy. Not so much the story as much as the way life comes together for unexpected conclusions. I'm not going to go on real long about this movie because there just isn't time enough in the day, but I definitely recommend it to anyone who loves creative cinema, or at least creative storytelling.
Advice: Bone up a bit on the Manson Family or you will be lost. Most YouTube documentaries will do the trick just fine.