Matte painting - In order to increase the grandeur of his live action films, Walt Disney hired matte artists to create paintings that would extend and expand the live action shots. For example, he could build the drawbridge of a castle, but the matte artist could paint the upper part of a huge castle with parapets, towers, gargoyles, and spires in realistic detail. When optically combined with the film shot on the set, it would give the impression that the film crew was actually filming a full-size castle. Matte paintings also created the rooftops of London, colonial towns, and waterfronts filled with old sailing ships, all of which would have been difficult or impossible to recreate with a set.