The move is a kind of patchwork quilt of scenes and images with a somewhat loose plot stitching it all together. The set design and most of the costumes are beautiful so it is visually gorgeous, however, Margot Robbie's Clara Bow-like character's costumes were too contemporary in my opinion. In one of her early scenes, she attends a party in a dress that you'd see on a young woman going to a club today...too short, too revealing, and the shoes were all wrong for that era.
Anyway, being of a certain age and as a fan of old movies from the 30s and 40s, I am familiar with the stars that are depicted in Babylon, sometimes through a conglomeration of personality and anecdotal stories. Some of the "shocking" scenes were almost too gratuitous. The most interesting story was that of Manny, the Mexican immigrant who works his way to the top of the movie making industry because of his love of that industry only to be taken down by Margot Robbie's character (whom he loves.) Her character was not sympathetic at all and rather annoying. His ending scene is very poignant and touching. One of the best scenes in the movie along with Jean Smart's scene with Brad Pitt when she tells him his time has come and gone.
Other sub-stories about the Asian actress and the Black musician touched on the double-standards at that time (20s-30s.) Other B characters were a little superficial but then the movie is 3 hours long so how deep can you go?
Overall, glad I watched it but probably won't watch it again.