Audio problem: When Tintin checks into his hotel room, he thanks the bellboy, but his lips do not move. (00:05:40)
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)
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)
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