Destination Moon: Part 2 - S3-E10
Continuity mistake: When Calculus is showing Tintin and Haddock the airlocks in the rocket, there are three levers shown, two of which are level with each other. Once Calculus has been told to return to the centre, the two levers that were level with each are now in two different positions. (00:32:15)
Destination Moon: Part 2 - S3-E10
Continuity mistake: Right before the launch, Haddock is wearing blue coveralls, but after the towers are cleared, they are green for one shot, only to be blue again for the rest of the episode.
Explorers on the Moon: Part 1 - S3-E11
Continuity mistake: When the crates are being lowered onto the moon, the antenna on Tintin's space suit is missing. (00:20:35)
Explorers on the Moon: Part 2 - S3-E12
Continuity mistake: When Wolff is telling Tintin he prepared a snack, Tintin asks if he can go get it. He is holding a screwdriver at a slightly slanted angle when he asks, but in the next shot, he is holding it in an upright position. (00:26:35)
Explorers on the Moon: Part 2 - S3-E12
Continuity mistake: In the tank, Haddock removes his helmet and he starts banging his head due to the bumpy moon surface. The shot cuts to an angle of the tank driving and the helmet has suddenly reappeared on his head. (00:26:50)
Explorers on the Moon: Part 2 - S3-E12
Continuity mistake: When driving to the landing pad, the number plate is shown to have fairly thin style numbering, but later in the scene, when the car is shown through the view of the binoculars, the numbering on the plate is much thicker. (00:41:05)
Continuity mistake: As Tintin and Snowy are walking out of the train station, there are two taxis parked outside. When Tintin is offered a ride, there is only one taxi, and the other taxi has been replaced by a purple car. (00:02:25)
Continuity mistake: When Tintin phones the operator to connect him to the police, she is holding a green wire. Then when the Mafia member takes it off her the wire is now blue. (00:07:05)
Continuity mistake: When Tintin follows the mob member from the diner to the building, the scene cuts to an exterior shot. A hot dog stand is shown outside the building, with a vendor standing beside it, but in the next shot, the vendor is suddenly standing behind it. (00:16:40)
Answer: According to Wikipedia, he is described as being a youth anywhere from 14 - 19 years old. There is no specific age.
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