My thought was, that the line would be coming from the next scene. (example: TFA - The scavenger, resisted you?!) So you wouldn’t need a reaction shot of Anakin/Padme in the hallway.
So in theory, it would be:
- Anakin & Padme are walking through the hallway
- VO of Dooku: Greetings, senator. (or maybe "May I ask why a senator is all the way out here on Geonosis?)
- Cut to next scene
- Pamde: You’re holding a Jedi knight…
So, a split edit/L-cut? I like this idea.