Lise Rietveld had a wound on her toenail during the first days of filming and wore a plaster when walking bare feet. After the wound was healed, she kept wearing the plaster to avoid continuity mistakes.
The first take of the movie's final pie fight unfortunately failed. Lise Rietveld her shirt was so dirty afterwards, that she had to change it with Annemarijn Lukassen who managed to keep it clean. However, her size was bigger and in the remaining takes, Rietveld was struggling to lift the shirt up and show her bare belly.
Arjen Rooseboom didn't had a driver's license yet and was still taking lessons at the time of driving the police car.
When the cardboard box is 'floating' right next to Ciska Bakker and Maartje van der Meij after they both fall in the water, it is actually being held up by Bart Spiekstra to prevent sinking.