Had this idea about 5 years ago, seems like it might be viable now, would love to see a video analyzer that creates relationship graphs using sentiment analysis. Ex. who responds to whom, what their tone is, how often. Hopefully with modern methods, it wouldn't take too many examples to pick out the dimensionality of expression (cheating out vs in, loudness + arousal, whining on the spectrum of playful to hurt, confidence, clarity)

Could test against TV shows and see if it gets an understanding of the social dynamics.

Plus could uncover a lot of the editing technique, I forget what the term is, when they create context from unrelated scenes by cutting from one to the other.

Would also pick up the general plot formula pretty quickly by mapping out the relative intensity and direction (action, tense, playful, romantic) of scenes.

I remember reading about a startup that did this or something similar for TV shows + movies a while back in the New Yorker, the idea was that they could predict how well it would do from a pilot or even the script.