I have posted this before here-There are movies and there are films. 99% of motion pictures are movies. 86 to 124 minutes spent passing time.
They are vehicles for the suspension of disbelief and to separate you from your money.
A film is much more. The Godfather was a film. The first Star Wars was a film. Pulp Fiction was a film. Slumdog Millionaire was a film. The Joker was a film.
IMHO, the contemporary book to movie transition goes poorly more often than it goes well. Authors know or should know via direct and vicarious experience, once they sell the rights, the lose control of the narrative, despite how much control they think they may have retained as per the "deal". Yet and still, the write and they sell.
The recent trend of more contemporary productions to have have more female leads, ethnic leads, inter-racial romance, same sex romance, non binary characters etc. is a true reflection of but one color-green. The decision makers in "Hollywood" simply want to make money. If they thought they could make more money on all male lead westerns circa 1956, they would do so.
IMHO, Big Hollywood does not give a rip about Shonda Rhimes gift of storytelling/POV beyond the bottom line.
https://en.wikipedia.org/wiki/Shonda_Rhimes
Having said that, does she even get the meeting if she was not a Dartmouth/USC Film School honors grad who got mentored by one of maybe 10 black folks who have real stroke in Hollywood re greenlighting 50Mil plus projects after she undoubtedly paid her dues v. somebody who was literally born into the business i.e. JJ Abrams?