Concerning the origin or fault of the character and dialog gender bias, I do wonder about movies that have been written by women.
For myself, writing short stories and such, most of my characters are male.
From a personality basis, I’m of the opinion that the approach of “This is how men act” and “This is how women act”, is bullshit. Because, I’ve seen so many different personalities inhabit bodies of both typical genders, that such a simplistic approach is abhorrent.
The biggest hurdle for me as a writer, is to properly portray the environmental experiences of the characters. That is, I know exactly what white men encounter in the world, because I am a white man.
When it comes to writing a character that is a woman though, it’s much more difficult for me to synthesize the, lets say, modifications to her personality that would have been produced by her being a she in the world.
For instance, if I were to write a character with Hillary Clinton’s personality, the way in which that character would react in various situations would differ radically dependent upon if said character was a woman or a man.
Thus, the lazy person in me is reluctant to write women characters and the “Am I getting this right?” questioner in me is similarly reluctant.
Having said all of this, I do wonder how much of the gender bias in the number of characters and the proportion of dialog is due to the director and/or producers of films.
It would be informative if you included a few movies in your analysis that were written by women.
I can’t think of any movies off the top of my head that were written, directed and produced by women, but it would be interesting to see what bias was in them. I would hope that they would have more women characters and dialog then the others.
Thanks for doing all of this work, it is a feast for thought.