In the first scene you see Rem taking off his leather jacket. In the next view he wears the jacket no more, then in the next view he's taking it off again.
When Lisa receives a phone call, an English type ringtone is heard, not used in the Netherlands.
Rem watches the movie Scarface in the cinema with his girlfriend. However, this movie was released in the Netherlands 6 months after the kidnapping (April 1984).
The Mercedes SL has wrong license plates. It has the modern ones with the logo of the European Union on the far left, which is poorly covered with yellow tape.
Before the kidnapping happens one of the gang members takes a seat on a black bench on a square. This black street furniture was introduced at least 20 years after the events take place.
When the police finds 21million and they are on the table, there are also euro's on the table which were introduced in 2002.
The kidnap took place in 1983, however traffic signs and roundabouts as filmed in the movie has been introduced in the Netherlands since the 90s.