At the beginning of the visit to La Cité des Sciences et de l'Industrie, we took part in an activity which consisted in creating a stop-motion movie. A stop-motion is a small video composed of photos that we have to gather quickly. We created a video with 50 photos for a 15 second video. In our class, three students were on the floor for photos and six students took photos and organised the shooting. The basis was The Piet Mondrian Party and we deformed this picture. We moved the black lines and the red, blue and yellow squares.