Best mystery movie factual errors of 2019

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Ad Astra picture

Factual error: Cepheus is clearly moving at immense speeds to make the journeys it does at the speeds it does. But despite the great speed it seems to have no problem slowing down on a whim for a mayday, then speeding back up again to get to Mars. And if it's got that much power on hand, what are all the solar panels for?

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The Highwaymen picture

Factual error: There's a modern car in the background as soon as they arrive in Dallas. (00:32:50)

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Knives Out picture

Factual error: The damning vials of medication are in close-ups. It is printed on the label that we're talking about 20 ml vials. The morphine vial is 5 mg/ml. When Marta says that she gave Harlan 100 mg of drug she is then wrong; unless she administered the full vial. The two vials have in fact different concentrations: the Ketorolac is in a 30 mg/ml solution, so Marta would have administered 600 mg of ketorolac tromethamine, not 100. The maximum dose for a geriatric patient is 60 mg per day; even the fact that she'd administer it in IV for days for just a pulled shoulder is definitely overdoing it anyway - and she puts even morphine on top of that. (00:36:00 - 01:49:00)

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