Like you describe the scenes:
“A Jumbo Set is landing in LAX in 1987 at dusk, the sky is orange from pollution.”
A balding, brown haired 45 year old police officer called John Mc Clane is clutching arm rest with a ring in his finger.”
Then you write a dialogue and later you can just refer to people in words and it remembers them. Then you can render it all to a movie.
Possibly with a option of doing re renders just by describing what you want changed.
Of course the resolution could be low on the initial renders.