Factual error: In the whole episode, Romania is depicted as a monarchy with the king in a position that allows him to make political decisions. However, Romania ceased to be a monarchy in 1947. By the time depicted in the episode (circa 1997), Romania was a republic and its head of state was the president. Members of the ex-royal family did not hold any positions in the Romanian government and were certainly not authorized to represent Romania in international events.
Paradise on Your Doorstep - S1-E5
Factual error: The plane Tom hijacks is a Grumman Goose. This has a maximum altitude of around 20,000 ft. When the pilot flips the pressurisation switch, the instrument panel shows the plane is only at 2500 feet! The cabin wouldn't have depressurised at such a low altitude - and even had it done so if the plane had been flying much higher, it wouldn't have had such a severe and debilitating effect so quickly on Tom as suggested in the episode - he passes out in about 3 seconds.