The Red Sea Sharks: Part 1 - S3-E1
Revealing mistake: When Tintin and Haddock bump into General Alcazar, after Tintin says "General Alcazar", the shot cuts to Alcazar saying "Ah, yes" in a confused manner. When he is saying this, there is a man walking in the background, about to walk out of frame. Just as the man is about to exit the frame, he vanishes. (00:01:45)
The Red Sea Sharks: Part 1 - S3-E1
Revealing mistake: When the doorbell rings, Tintin and Haddock go to answer it and Calculus, on his roller blades, stands up and falls back down again. Snowy, under the couch, is peeking his head out and moves back into the couch when Calculus falls. When he does this, Snowy's ears pass through the couch. (00:05:50)
The Red Sea Sharks: Part 1 - S3-E1
Revealing mistake: When Thomson and Thompson are questioning Tintin about General Alcazar, there is a shot where Thompson asks Tintin "That's all, is it?" and the shot pans over to Thomson asking "And what did he tell you?" When the shot is on Thomson, it is apparent that the animation of the chair that he is sitting on is incomplete, as a section of the chair has not been fully drawn out yet. (00:07:05)
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.
Answer: According to Wikipedia, he is described as being a youth anywhere from 14 - 19 years old. There is no specific age.
raywest ★