When the terrorists take the tram in Vienna to get to the OPEC conference, the tram can be seen in three scenes, and every time it is a different tram line: The first tram's final destination is "Nussdorf", the second tram is line "D" and the third is a tram on "Extra Tour".
At the meeting with KGB chief Yuri Andropov in Baghdad in December 1977, Carlos is assisted by an interpreter. However, Carlos spoke Russian. He had studied Russian since he was a teenager, and he later attended university in Moscow.
When Carlos and his militants enter the cockpit of the Austrian Airlines DC-9 after the OPEC siege in Vienna, the Captain of the airplane occupies the right hand seat. He also stays there during the flight. The Captain should sit in the left hand seat.