Character mistake: When Rastapopoulos and Carreidas are arguing, Haddock intervenes telling them to cut it out. Rastapopoulos and Carreidas attempt to kick each other but end up kicking Haddock's leg. The kick is shown to have hit Haddock around the back of his leg, but Haddock then grabs his knee in pain. (00:21:00)
Continuity mistake: Captain Haddock places three strips of tape over Rastapopoulos', Carreidas' and Krollspell's mouths. The last piece of tape over Rastapopoulos' mouth is a strip that goes from the top of his left cheek down to the bottom of his right cheek. A few seconds later, as they leave the room and go outside, it goes from the top of his right cheek down to the bottom of his left cheek. (00:20:35)
Continuity mistake: When Tintin and the others are locked in the room, Tintin looks out the window, assuming he thought he heard Snowy. On the left hand side of the window is a plant. A few minutes later, Snowy arrives and the plant is still there, but when Tintin throws Snowy out the window telling him to wait, the plant has vanished. (00:13:55 - 00:16:20)
Continuity mistake: After Snowy runs away, two gunmen grab ahold of Tintin, restraining him. As Tintin is yelling "Cowards! Murderers!", the gunman on the left is holding Tintin's upper arm with his right hand. The shot cuts to a closer angle of Tintin and there is no sign of the gunman's right hand. (00:11:00)
Continuity mistake: When Carreidas receives a call from New York, he takes the phone from the flight attendant. The cord on the phone is black when the flight attendant is holding it on the dish, but red when Carreidas answers the call. (00:06:10)
Continuity mistake: When Mr. Carreidas and Mr. Spaulding walk over to Tintin, Haddock and Skut, in the shot where Skut says "Mr. Carreidas, these are my friends", the money that Haddock previously placed into Carreidas' hat is sticking out of it and a portion of the note is tucked into Carreidas' hat. In the next shot, only the top right corner is tucked into into Carreidas' hat. (00:03:15)
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