Thank you, Nina, for mentioning this movie. Now this is the other scene I told you about. It contains a couple of terms worth looking up, like "irrigation", "sanitation". - The end of the scene is marked by a strong knock at the door ... it's a Roman patrol, coming to search the house.
And here is a really good parody of the Monty Python scene, or rather it's a sort of translation into present-day arguments ;-)