In a climactic fight, Rollin Hand's lip is bloodied. In the first shot, the blood is on the left side of his lip. In a following shot it is on the right side.
When Lupesh falls down the stairs and lands at the bottom, he rests on his left side. Yet when Rollin looks down, Lupesh is on his back.
Although Cinnamon does not take part in the mission, when Briggs is selecting the team, her dossier is visible for a split-second before Briggs tosses Barney's dossier on top.
After Jankowski is shot and Rollin is helping him as the Cherlotovs escape, there is a blood stain near Rollin's mouth that moves from the left side to the right side.
The magnetic paper certificate clearly has header word "Rzeczpospolita". It is a word exclusive to Polish language, it definitely does not exist in Czech language (where the action takes place) nor any other language for that matter.
In order to execute a mission in Czechoslovakia, according to the map the IMF team is studying, all the team members must speak Czech language not just fluently, but indistinguishably from native speakers. Nevertheless, Mr. Briggs reads the name of a town Budejovice as "Boo-de-jo-vich", a very clumsy rendering betraying an English-only speaker. The correct pronunciation is "Boo-de-yo-vee-tse" in official language or "Boo-de-yee-tse" in folk speak.
However, Mr. Briggs would not go to Czechoslovakia. On the other hand, Rollin impersonates a German official, and he can speak German, which is a lingua franca in Czechoslovakia.
Just before a commercial break, the image freezes on Martin Landau grabbing onto a chain-link fence. After the break, Landau's stunt double is in his place. The image is still frozen, giving us a clear view of the double's face.
When Rollin first meets Taal and Lupesh, they are on grass. When they begin to walk, the sound is of hard heels on a hard surface.
Rollin drives a right-hand-drive car in an eastern bloc country.
When Karen shows the IMF team her escape route on the map, the cities of Beoun and Pubram are fake, while the city of Ceske-Budejovice is in the Czech Republic.