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)
The Crab with the Golden Claws: Part 1 - S1-E1
Other mistake: When Thompson apparently bangs his head on the cabin door, his head misses the door frame. (00:09:35)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Tintin says "Thanks detectives" his mouth doesn't move. (00:09:00)
The Crab with the Golden Claws: Part 1 - S1-E1
Continuity mistake: When Tintin is examining the back of the Crabe Extra wrapper in his apartment, the back of the wrapper keeps going from white with Karaboudjan written on it, to yellow with nothing written on it, to white with nothing written on it between shots. The writing then reappears and the back of the wrapper is white. Tintin then shades the paper with a pencil and notices the wrapper says Karaboudjan. In the next shot, all the pencil shade has disappeared. (00:05:10)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Tintin says "It's gotta be in here somewhere", his mouth is open, but doesn't move. (00:04:10)
The Crab with the Golden Claws: Part 1 - S1-E1
Audio problem: When Thomson says "I'd better go investigate" and Thompson says "We'd better go investigate" neither of their mouths move. (00:03:50)
The Crab with the Golden Claws: Part 1 - S1-E1
Continuity mistake: After Daws has been killed, the Crabe Extra tin is in a box with lots of other stuff. There is also a coat hanger at the back of the box. However, when Snowy dives into the box the next day, the coat hanger is no longer there. (00:02:30)
The Secret of the Unicorn: Part 1 - S1-E3
Continuity mistake: When Tintin says to the man with the Unicorn "would you take $20?" there are people behind him. The scene then cuts to the Unicorn guy. In the next shot, when Mr. Sakharine appears, the people behind him are completely different people. (00:03:35)
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)
Answer: According to Wikipedia, he is described as being a youth anywhere from 14 - 19 years old. There is no specific age.
raywest ★