Zooks' animation came about through the rotoscope technique. First actors played the complete scenes of the film, after which everything was edited classically. These scenes were then used as inspiration for the animators. Each character, every movement of the story, was re-drawn frame-by-frame by hand and re-created into an animation image in which the expression of the real actors comes to life. Only after these 'cartoon figures' were developed, they were placed in a 3D background and then finished.