Factual error: The real Mona Lisa is much smaller than the 'authenticated' painting shown in the film. (00:06:30)
Factual error: When they first pick up the Mona Lisa, they show the back. There you can see a canvas sheet over a wooden framework. However, the Mona Lisa is painted directly onto wood, no canvas at all. The scan they run even says it's painted onto wood, despite visual evidence to the contrary. (00:06:35)
Factual error: When the SWAT trooper is executing the dogs, he does so with a WA2000 sniper rifle...which both he and the film treat like a shotgun. The actor moves his hand back and forth along the underside of the weapon, miming working a pump action that his gun does not have, and the audio matches with the sound of a shotgun being cocked.
Chosen answer: As I see it, the point of the speeches is not to evoke emotions in the listeners, but rather to show what emotions such as anger and jealousy lead to in the course of human history. So they use historic "evidence" to justify their actions (such as killing sense offenders) and to show what emotions can lead to.
Andreas[DK]