Agatha Christie's Poirot

Dumb Witness - S6-E4

Factual error: Spoiler. Police Sergeant Keeley tells Poirot that Doctor Grainger died of carbon monoxide poisoning. The killer turned the natural gas in the bedroom and did not light the heater. This would result in the room filling with natural gas, not carbon monoxide. (01:17:30)

Noman

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Suggested correction: Surely it was coal gas at that time, before we all converted to natural gas?

The product of coal gas is still methane, which is CH4. It may contain tiny volumes of CO but the gas asphyxiation would still have come from methane, not carbon monoxide.

The Dream - S1-E10

Plot hole: Nobody hears the sound of a gun being fired past a door they were waiting almost in front of, and the police cannot tell apart a shot fired point blank by one fired 20 feet away and probably at a very sharp angle. Moreover, the bleeding should be all over his face, since leaning the way it is shown in this adaptation is most likely to lead the victim to fall over, and even leave bloodstains out of the window and on the ground below, which someone would have noticed in the crowded factory.

Sammo

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Answer: He definitely says "Belgian", but the subtitles get it wrong and show him saying "American."

Wblank71

Answer: It sounds a bit like "American", but listen very closely and you will hear "Belgian".

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