Cigars of the Pharaoh: Part 1 - S1-E6
Revealing mistake: After the plane flies off, the gunmen continue to fire. If you look at the gunman on the bottom left, every time he shoots, a small smoke cloud comes out of the shotgun. The smoke cloud just stays on the edge of the shotgun until he shoots the next time. (00:20:55)
Cigars of the Pharaoh: Part 1 - S1-E6
Revealing mistake: The gunmen fire at the plane in which Tintin takes off, but there are no bullet holes in the plane at all. (00:20:40)
Cigars of the Pharaoh: Part 1 - S1-E6
Revealing mistake: The mummy crate is brought onto Allan's ship. As the crate is being lowered down, there are two people standing next to it. The man on the left has a black hat which becomes a blue hat for a frame then goes back to a black hat. (00:09:30)
Cigars of the Pharaoh: Part 1 - S1-E6
Revealing mistake: The shot of the letter being placed into the envelope and being stamped with the symbol is used twice. The first time is after Tintin meets R.J. Rastapopolis. The second time is after the boat arrives at the docks and Tintin goes onto another boat. Notice how the way he closes the envelope is the same and the stamp of the symbol is placed in the exact same position. (00:03:30 - 00:05:05)
Cigars of the Pharaoh: Part 1 - S1-E6
Revealing mistake: On the boat, Tintin chases after a paper. There is a shot of a man being handed a drink and the paper continues to blow away. Keep an eye on the paper and you will see it disappears before it reaches the end of the screen. (00:01:35)
Chosen answer: It is a pill that makes alcohol taste disgusting.