ScreenplaySubs is a browser extension for Netflix that syncs up movies with screenplays, displaying them side by side. It's like having a subtitle that provides more insights to your films.
I really like the Amazon Prime Video "X ray" feature that shows the actors, bios, etc, in the current scene. It's odd to me that other services like Netflix don't have something similar.
Demo: https://vimeo.com/447986440