Principal photography took place from 24 August until 19 December 2005 on locations in the Netherlands, including Hardenberg, Giethoorn, the Hague, Delft and Dordrecht, and in Israel, by Hocus Focus Films. In the opening scene a real pre-war farm was blown up in the municipality of Hardenberg. The farm had already been declared uninhabitable and ready to be demolished. Some underwater explosions were filmed in a lake near Giethoorn. In the centre of The Hague they built bunkers to cover up modern day objects such as the entrance to an underground car park. The former chemistry faculty building of the Delft University of Technology was used to film prison scenes. Great attention to detail was paid in the film. Several stage props were reproduced from the 1940s, such as signs, posters and the black book itself. Furthermore, in one of the liberation scenes in The Hague, up to 1,200 extras appeared.