Tintin remembers his last time in San Theodoros when he meets up with Gen. Alcazar in Tintin and the Picaros, and this colors his approach. He had to stare down a firing squad, then not, then stare them down again, then gets drunk during a brief reprieve (because why the hell not?), then gets promoted, then gets shot at by his boss (with blanks, and he seems to be aiming high), then gets framed for treason and slated for execution.
He first refuses to go to San Theodoros (figuring they'd be arrested quickly if not immediately), goes later only after Haddock and Calculus (they haven't been jailed yet, so the government is waiting for him), meets up with Alcazar and realizes that they've been duped by Pablo (ironically, Alcazar fully trusts Pablo and doesn't immediately conclude that he's a traitor - maybe he learned from what happened to Tintin way back when?), and after making their way through the jungle puts a Batman Gambit into play with the condition that Alcazar's coup be a bloodless one (seeing as how the last time, he had to leave the country after starting a war).
During ''Cigars of the Pharaoh" every member in the smuggling operation had the mark of an old Egyptian Pharaoh on their bodies. Plus they used the Pharaoh's tomb as part of their operations. What's the connection? Well Opium has been in use since ancient times, including in ancient Egypt. So if the Pharaoh in question was a known user or trader of Opium, so much so that he was remembered for it thousands of years later, then it makes all the since in the world for Opium smugglers to adopt his symbol as their own.
Of course the film ends on a cliffhanger. "Always leave the audience hanging" was one of Herge's philosophies.
Not to mention that due to the death of that creator, the whole series ends on a cliffhanger.
One I just had about Flight 714, or, to be more precise, the truth serum. The serum works, because it forces you to tell the truth... only that it does not force you to answer exactly to what you are being asked. Probably Carreidas realised this on time and thus started to babble the truth about every evil thing he has done in his life, in order to push back the moment in which Rastapopoulos will decide that he has outlived his usefulness and kill him. And when Rastapopoulos accidentally gets the serum in his bloodstream, his need to boast overrides his common sense and engages in his Eviler than ThouHam-to-Ham Combat with Carreidas.
Overlapping with Fridge Horror. Tintin's repeated concussions throughout his life should had earned him permanent brain damage by the sixth time at least (which is much earlier than you think). At first this can be taken as the Tap on the Head trope in full effect, but it is clear that the later stories show that time does still advance with the invention of color TV (The Castafiore Emerald) and supersonic jets (Flight 714). He may be using any money he earned to pay for his neurologist bills offscreen!!
During the 2011 film, in Bagghar we see a sign warning of water shortages. Things are going to get a whole lot worse now that Captain Haddock has drained the dam...
Seeing the population's eager reactions to the wave of water, perhaps the dam (and government's restriction) is causing the water shortages.
More or less confirmed by now, seeing that the dam was used to create Omar Ben Salaad's artificial lake.
At the end of "The Shooting Star" the titular star sinks to the bottom of the ocean. There's no reason to think it's unusual radiation that causes things to grow won't work on the bottom of ocean, where the really scary creatures live.
1) Water is a really good insulator of radiation thanks to its density. 2) Those really big sea-creatures can't survive in depths humans utilize. They evolved for the crushing pressure of the deep ocean, and die at our altitudes, not unlike a human in space.
