The Secret of the Unicorn: Part 2 - S1-E4
Other mistake: Tintin is in the treasure room whilst the Bird brothers are looking for him. After the brother with the gun shoots the knight armour, Tintin is crawling around the room far behind them, and pops his head up where he can see them. About 2-3 seconds later, he is then shown as a mirror reflection the brothers are tricked into thinking is real, nowhere near his previous spot. 4 seconds after that, Tintin is hiding behind a cupboard at the other end of the room, that the brothers just quickly run by. (00:37:20)
The Secret of the Unicorn: Part 2 - S1-E4
Other mistake: The inside of Snowy's mouth is white when Tintin says "Captain, I'm fine". (00:40:20)
The Secret of the Unicorn: Part 2 - S1-E4
Other mistake: All the shots fired at Barnaby went into the wall. The bullet holes are even there to prove it. This shows us he was never shot. Yet for some reason, he acts as if he was shot. (00:32:15)
Chosen answer: If Hector was seriously intent on removing King Ottokar's scepter from the glass cage holding it and launching it through the window with the camera, then Hector would have been forced to knock out the two guards so they would not have interfered with Hector's plan as soon as he removed the scepter from the glass. As for Hector, himself, was explained when Tintin was explaining how Hector stole the scepter. Tintin placed a twig inside the camera and it launched out of the camera. Hector would have placed the scepter inside of the camera, and would have been knocked unconscious due to the spring effect created when the scepter had been launched.
Casual Person