The problem with most screenplays, line-to-line and character-to-character, is a problem of differentiation. As in, everybody sounds like the same type of person. Human or human-adjacent qualities, optional. Separate from this problem is the rarified, repeat-Oscar winner realm of screenwriting, where Quentin Tarantino holds court and the writing becomes so self-consciously embroidered that scenes have a way of slowing to a crawl while the writer dog-paddles around for a while.