For many a director, film history is an important source of inspiration. As an illustration watch the next movie fragment from 23e Street (1901), Edwin S. Porter. It shows a street in New York around 1900. The street has ventilation grids for refreshing the air of the Subway. One can imagine what will happen if the flow of air comes under the skirts of a woman. Start fragment. More than fifty years later, the same tableau is used for one of the most famous scenes in the history of the movies. The following fragment from The Seven Year Itch (1955), Billy Wilder, shows how the same idea is re-used starring Marilyn Monroe in a classical pose. In a way one can say: history repeats itself. However the precise way of repeating is quite different.