Revealing mistake: The first morning the new Mrs De Winter is at Manderley, she goes to have breakfast, but when she attempts to pour milk into her coffee, there's no milk in the jug; she's just pretending to pour it.
Revealing mistake: After Maxim leaves a note, saying he'll be gone for the day and having him gone should be a welcome relief for her, the girl sits in the morning room, crying. As the camera moves away from the girl, some flowers on the right jiggle from being hit by the camera.
Revealing mistake: A lot of "Rebecca" is shot in a studio, even the driving and walking scenes, but in long shots, like when Maxim and Frank are driving back from London, to Manderley, in the "real" shot, you can see it's not Olivier driving the car.
Chosen answer: From the screenplay of "Rebecca" which I found on-line, and verified by looking at two different versions, the entirety of the line is: "By the way, what do you do with old bones? Bury them, eh what? However, for the time being - you know, Max, I'm getting awfully fed up with my job as a motor-car salesman."
Michael Albert