Maria’s heroism in saving the children of the Lower City from flooding is aided by what may be only positive depiction of a technology in the film.
Maria summons the children with the gong in the town square.
To summon the children so that she can direct them to safety, she climbs a structure in the center of the town square. There she struggles with a very difficult-to-budge lever, but when she finally does so, it sets a loud gong to ringing. In keeping with the film’s theme, this brings people together so they can be saved.