The Secret of the Unicorn: Part 1 - S1-E3
Factual error: The man selling the Unicorn tells Tintin that he can have it for 25 dollars. Tintin is Belgian and this is in his home town; they should be using francs in that time period. (00:03:30)
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The Secret of the Unicorn: Part 1 - S1-E3
Factual error: The rotary dial in the phone booth has six numbers when there should be 10 numbers. (00:07:50)
Chosen answer: It is a pill that makes alcohol taste disgusting.