The Red Sea Sharks: Part 1 - S3-E1
Continuity mistake: Tintin and Haddock exit a movie theatre and are walking down the sidewalk, with the sidewalk facing behind them. After they bump into General Alcazar and Tintin realises that it is him, it is suddenly the main road that is behind them. (00:01:35)
The Red Sea Sharks: Part 1 - S3-E1
Continuity mistake: After bumping into Alcazar, when Tintin says "the Captain and I were just talking", a woman can be seen walking along the sidewalk across the street in the far background and is about to exit the frame. The shot cuts back to Alcazar, but when the shot cuts back to Tintin, the same woman can be seen walking past the same ground a second time. (00:01:50)
The Red Sea Sharks: Part 1 - S3-E1
Continuity mistake: When Tintin shows the man at the desk at the hotel the drawing of Alcazar, Tintin's coat sleeve is not the regular beige, but a dark green sleeve. The notepad also goes from being held vertically to horizontally. (00:02:35)
The Red Sea Sharks: Part 1 - S3-E1
Continuity mistake: When Tintin is pouring Haddock a cup of coffee, the liquid shown when first being poured is dark, but when Tintin is pouring coffee for himself, the same liquid is much lighter. (00:05:10)
The Red Sea Sharks: Part 1 - S3-E1
Continuity mistake: Tintin and Haddock are at Oliveira's place and Oliveira is pouring Tintin a drink. The drink is visibly coloured, presumably alcohol, but in the next shot, the liquid is now water. (00:16:00)
Chosen answer: It is a pill that makes alcohol taste disgusting.