But then you have books of rules like "Save the Cat!" that identify a lot of beats that you do usually find in screenplays. Maybe not all the ones are in every

But then you have books of rules like "Save the Cat!" that identify a lot of beats that you do usually find in screenplays. Maybe not all the ones are in every script, but it's uncanny how the midpoint is almost always as described to where you can pause it when you feel the beat and you're halfway through the film.