Series 10 Filming & Behind the Scenes

[A Cousin]

From what I have been able to pick up from DVD commentaries, they film each series more or less in chronological episodic order but each episode is not necessarily filmed in chronological scenic order. Each Director takes two episodes back to back, so Director A gets 10.1 & 10.2, Director B gets 10.3 & 10.4, etc. Within their two episodes they film it in whatever order they need to. Not randomly. There's a schedule. You can't move all the actors, technicians, equipment, etc on a whim.

That aside, I do think KUDOS knows exactly how many episodes they have to make before going into it. It's a budgeting thing. The actors may or may not know for certain. Its not their job. Their job is to act. But I tend to think that they do know.