Mapping Character Arcs to Scene Beats: The 'A/B' Method for ADs

I've started explicitly mapping character emotional arcs to individual scene beats, not just overall scenes, and it has drastically improved performance and schedule adherence. Instead of broad notes like 'Character X is sad here,' I'll define two specific emotional states for a character within a single scene, 'A' being their starting point and 'B' being where they need to land by the scene's end, or even a beat within it. For example, a scene might have a character go from 'resentful (A)' to 'begrudgingly compliant (B)' by the 1/3 mark, then 'frustrated (A)' to 'resigned (B)' by the scene's close.

What worked was providing this level of detail to the actors during blocking, often with the director's approval. It gave them very specific emotional targets for each 'turn' in the scene, which reduced the amount of 'figuring it out' during takes. What didn't work was trying to over-complicate it with more than two states per beat; it became overwhelming and counterproductive. Keeping it 'A to B' per significant beat or sub-section of a scene was key. It also gave me, as an AD, a clear checklist during takes: 'Did we hit the A to B for this line/action?' This allowed for faster adjustments without breaking down the whole scene.

It’s almost like micro-blocking emotional journeys. How do you integrate character arc development into your daily blocking or rehearsal process?