The Adventure of the Western Star - S2-E9
Continuity mistake: When Japp shows the police ID to the road worker, he is holding it by the side in the close-up and by the bottom corner in the next shot. (00:45:05)
The Adventure of the Western Star - S2-E9
Continuity mistake: Japp watches the worker with the flags pass him by while he's leaning his arm on the window. His arm was not there in the shot of the vehicle from behind. (00:45:15)
The Adventure of the Western Star - S2-E9
Continuity mistake: When Poirot does the handkiss on lady Yardly, she has her thumb up when she's viewed from the front, but down in the side view. (00:45:55)
Answer: He definitely says "Belgian", but the subtitles get it wrong and show him saying "American."
Wblank71