The Secret of the Unicorn: Part 1 - S1-E3
Continuity mistake: Whilst buying the model Unicorn at the market, between the time Tintin says "Will you take 20 dollars" and when he is interrupted by Sakharine, the sales in the background change entirely despite only a few seconds passing. (00:03:25)
Explorers on the Moon: Part 2 - S3-E12
Revealing mistake: When Jorgen points the gun at Tintin and co, Wolf starts to fight with him and there is a shot from outside the rocket. As this happens, look to the left of screen. One of the stars stays in the same position as the rocket continues to move.
The Secret of the Unicorn: Part 1 - S1-E3
Other mistake: When the pick pocket is listening to the radio at the beginning, he cuts right through the middle of a paragraph in a newspaper. Yet when we see paragraph cut out and in the journal, the paragraphs are in full sentences. If it were the right way round we'd see a half line on the paragraph. (00:01:30)
The Seven Crystal Balls: Part 1 - S3-E3
Continuity mistake: Just after Alcazar does his knife trick, the shot cuts to Tintin where he says "General Alcazar, I knew him in South America." As he says this, he turns his head around to Captain Haddock. In the next shot, his head is now directly facing Alcazar.
The Secret of the Unicorn: Part 1 - S1-E3
Continuity mistake: When Tintin places the broken model Unicorn back on the desk, the middle mast has broken off. Yet when Haddock walks in to notice the model Unicorn, the mast is now intact. (00:04:50)
The Seven Crystal Balls: Part 1 - S3-E3
Other mistake: When Sanders finishes the translation, he puts a full stop at the end of the sentence, but there's no sign of the full stop on the paper.
The Secret of the Unicorn: Part 1 - S1-E3
Audio problem: When Tintin walks into Sakharine's apartment, he says "Mr. Sakharine". His mouth doesn't move when he says it. (00:06:30)
Deliberate mistake: Captain Haddock finds out the SOS was a fake so he tells the engine room to increase speed. Just after they increase speed and Tintin says "The people financing the Peary", we can tell the boat isn't moving since the background is entirely still and not moving an inch. (00:14:45)
The Secret of the Unicorn: Part 1 - S1-E3
Deliberate mistake: After Francis Haddock kills Red Rackham, he lights a fuse to the explosives. The fuse that was lit is only a foot long, yet he is somehow able to climb out the ship without anyone noticing, get into a boat and swim all the way to land before it explodes. At a foot long it would have exploded in 10 - 15 seconds, all of that would taken at least 10 minutes. (00:18:45)
The Secret of the Unicorn: Part 1 - S1-E3
Audio problem: When Tintin is in the phone booth, you can hear him turn the rotary dial, but his fingers aren't touching the dial. (00:07:50)
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)
The Secret of the Unicorn: Part 1 - S1-E3
Continuity mistake: When Thomson and Thompson arrive at Tintin's apartment to find they have been pick pocked again, their faces go from pale to not pale between shots. (00:08:30)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Thomson and Thompson say "Right then" at the crab stall, their mouths don't move. (00:37:55)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Tintin says "So far the only clue are the crab tins", his mouth doesn't move. (00:37:05)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Tintin says "Oh no" after losing Alan, his mouth is wide open but doesn't move for the rest of the sentence. (00:34:25)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Tintin says to Haddock "they'll kill you", his mouth doesn't match what he says. (00:32:15)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Tintin says "When we reach Baggar we'll check in at the harbour master's office", his mouth doesn't match up with what he's saying. (00:31:30)
The Crab with the Golden Claws: Part 2 - S1-E2
Audio problem: When Haddock says "What?" after Tintin suggests he shouldn't have anything, his mouth doesn't match what he is saying. (00:30:20)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Haddock says "Not fast enough for me", his mouth doesn't match what he's saying. (00:19:45)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Thomson and Thompson say "Cheerio" after exiting the Karaboudjan, neither of their mouths are moving. (00:11:45)
Chosen answer: It is a pill that makes alcohol taste disgusting.