>Documentary Filmmaker here, in regards to screenwriting, have you had any success using AI for tasks such as transcript selection (provide the AI your story arc, characters and their associated roles, then let it identify the best talking points from each?)

Have only just started getting really into the GPT3 stuff with the recent advent of ChatGPT, but I'm finding it can do some absolutely incredible things. Haven't had super major breakthroughs yet, but I have had some interesting moments where it's given me really useful suggestions.

In terms of editing, I was looking at Runway, the AI-integrated Video Editor, and it looks exceptionally promising, so I would advise you take a deeper look into that.