Goofs

The police car that's being used in the rooftop-chase scene is a Volkswagen Golf V. But when the horse falls off the roof and onto the car, the dented car we see in the next shot is an older model Golf IV. As a matter of fact, the license plate numbers are different. The newer Golf has a license plate released somewhere in 2004 and the Golf IV has a 2001 plate.

When Sophie is found dead there is no electricity in the house. But the television-set is still working.

Near the end of the movie the searchlight from the police boat stops working (as does all other electric equipment). In the next shot the light works again.

The broken windows on the police boat seem to have repaired themselves when the boat first docks at the old harbor. Later, they are broken again.

This one has been submitted yet but there is an error in it; The police car that's being used in the rooftop-chase scene is a Volkswagen Golf V. But when the horse falls off the roof and onto the car it momentarily is a Golf III, the dented car we see in the next shot is an model Golf IV. As a matter of fact, the license plate numbers however are the same on all cars.

The myth tells that at a full moon on the 5th of December Saint Nicolas returns to take revenge. The events in the movie take place in 1492, 1968 and 2010. Only in 1492 did a full moon occurr on the 5th of December, although 1968 was very close with the 4th of December.

When Lisa walks towards her own house, right after she said goodbye to Sopie, you can clearly see that the houses behind Lisa's house have perfectly clear rooftops. This shows that the snow in the entire scene is artificial.

The buildings in the prologue are reconstructions of medieval town buildings from the 12th to 14th century, yet there doesn't seem to be any walls or gates, as Niklas and his gang enter the settlement unhindered, implying it to be a small village. A medieval Dutch village wouldn't have had narrow streets with narrow, high houses, while a proper town would have been far better protected.

From the conversation the Superintendent has with the Mayor (at the end of the film, when the amount of victims is being discussed, namely 300) it can be deducted that the Mayor, as head of Police, as well as the Superintendent were both well aware of the dangers of a rampaging Niklas and his servants on 5 December during a full moon recurring every 42 years. The Mayor highlights that Amsterdam had to learn to live with this event for centuries now. He says that one day it will stop, but not in their lifetimes. They had 42 years to prepare and yet no extra police were on duty, as most were celebrating the 5th December festivities. Also Goert Hoekstra's report was never considered as a possible solution to the Niklas problem and halfway the film the Superintendent even starts reading Goerts report as if he is aware of the Niklas problem for the very first time.