The Seven Crystal Balls: Part 2 - S3-E4
Revealing mistake: When Tintin and Haddock break into the shed, they look out of a window to find the intruders getting away. When they look out of the window, Tintin's arm passes through a wooden bar shown near the bottom section of the window. (00:30:20)
The Seven Crystal Balls: Part 2 - S3-E4
Revealing mistake: When the detective is phoning the police about the black sedan, a man sitting at a desk is writing the details. He is writing on four lines of paper, but after writing the first three lines, he is just writing over the third line for a second time and the fourth line of writing suddenly appears on the paper. (00:30:35)
Prisoners of the Sun: Part 1 - S3-E5
Revealing mistake: When Tintin is swimming back to the boat after escaping the ship, Haddock is quickly rowing back and forth to reach him in time. As Haddock rows, the bars used to place the oars through can be seen moving back and forth, along with the movements of the oars, even though the bars are supposed to remain still during the oar movements. There are also frames from this shot where the bars vanish from the frame entirely as Haddock rows. (00:07:25)
The Castafiore Emerald: Part 1 - S3-E7
Revealing mistake: When Castafiore is showing everyone the Castafiore emerald, after she says "He named it in my honour", the shot cuts to a close-up of her hand, saying "The Castafiore Emerald." At the start of the shot, she has two rings on two fingers, then she turns her hand and the two rings vanish from her fingers entirely. (00:09:00)
The Castafiore Emerald: Part 1 - S3-E7
Revealing mistake: When Castafiore locks her jewels in the drawer, she places the key inside the lock, but the key visibly surpasses the edge of the lock. (00:10:00)
The Castafiore Emerald: Part 2 - S3-E8
Revealing mistake: When they are watching the news broadcast on Calculus' high definition television set, after the news broadcaster mentions Castafiore's stolen jewel, Castafiore says "He's talking about me." The mole on her cheek appears and vanishes from her face whilst she is saying the line, revealing a slip-up in the animation. (00:35:00)
The Castafiore Emerald: Part 2 - S3-E8
Revealing mistake: After Calculus has finished the high definition television broadcast, Tintin and Snowy are lying on the grass. When the scene starts, a bird is shown flying into frame and continues flying, but whilst it is on-screen, the bird suddenly vanishes from the frame. (00:36:30)
Destination Moon: Part 1 - S3-E9
Revealing mistake: When the radar is telling the control station that they are standing by, in the background outside, there is a mark shown on the ground outside that appears to be flickering by appearing and disappearing between frames. (00:15:20)
Destination Moon: Part 1 - S3-E9
Revealing mistake: When the countdown to engage the nuclear reactor on the model rocket has reached zero, Tintin pushes the second lever. It is apparent that Tintin is not actually holding onto a lever, but merely the animation is just drawn in a way to make it appear that he is. The green ball shown on top of the lever is not in the shape of a ball, but is really just the colour green that has been filled in through the gap between Tintin's thumb and finger. The lever doesn't even resemble a ball shape as it should. (00:16:40)
Destination Moon: Part 1 - S3-E9
Revealing mistake: Haddock asks Tintin if he can control the rocket's nuclear reactor and takes hold of the lever. It is apparent that he is not holding onto the lever. He is merely just miming the actions of grabbing onto the lever, when the lever is shown just below where he is holding. (00:18:40)
Destination Moon: Part 2 - S3-E10
Revealing mistake: When Calculus is showing Tintin and Haddock around the rocket, they are in the deck below. Tintin and Calculus have already climbed down the ladder and Haddock is still climbing. Whilst Haddock is climbing down, the button on the back of his space suit vanishes for one frame. (00:31:50)
Explorers on the Moon: Part 2 - S3-E12
Revealing mistake: On Earth, in the shot of the rocket making its landing, the booster ignition can be seen passing over the edge of the booster, and over part of the rocket. (00:41:10)
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.
Revealing mistake: When Tintin and Snowy arrive in Chicago on the train, whilst Tintin says "Here we are Snowy. Chicago", his fingers pass through the window frame of the train. (00:02:20)
Revealing mistake: When Tintin is getting into the taxicab after leaving the train station, the cars driving on the road in the background are the exact same purple car design duplicated over and over. (00:02:30)
Revealing mistake: When the driver covers the windows in the taxicab, in the shot where he says "Too bad you won't get to appreciate the view", the cover shown between the back seat and the front seat has visibly not been fully drawn in yet, and an unfilled gap can be seen in the cover. (00:03:05)
Revealing mistake: When Tintin is writing his news report on the mafia, the writing does not appear when typed, but instead appears one row at a time. Also, when he removes the paper from the typewriter, several rows of writing have suddenly appeared. (00:20:50)
Answer: According to Wikipedia, he is described as being a youth anywhere from 14 - 19 years old. There is no specific age.
raywest ★