When Dr. Stich is walking on the bridge there are 8 but 11 explosions are seeing, also on places where he is not walking at all.
The voice of Dr. Wimmer on the tape recorder sounds different then when Florian hears it from when recorded.
When the tape recorder is hanging on the line in order for Florian to hear it, the voice can be heard. However the audio started automatically without pressing the play-button.
When Pinky arrives at rehearsal Roman immediately asked if he has his new song along, which Pinky agrees. Then Roman presses the Play-Button without having a tape received or putting it on the recorder. It wouldn't be possible since Pinky didn't send or give him anything.
When the female teacher tries to show places on the map of South America while wearing a blindfold, not seeing that the map is covered by a poster of a woman in a bikini, she tells about two mountains in South America, even though there is only water (the Carabeen sea) on the original map.
While Dr. Wimmer is announcing the introduction round one of the female students before he finished the line, after what she told him that she is not allowed to introduce herself to strange men. So when she stood up she didn't hear him saying that he wants to learn about the students.
When the students see the teachers in the boarding school Roman recognized them and mentioned that they saw them and Pinky is trying to hide his face in shame. However when the teenagers first met them on the street Pinky wasn't there yet so he couldn't have known them.
When attempting to explain South America on the map Miss Schickedanz mentioned Livingstone. David Livingstone however was never in South America and was exploring Africa during his life.