"Children Must Laugh is a partially dramatized documentary about the work of the Medem Sanitarium, a model residential institution for children operated by the Jewish Labor Bund near Warsaw until the time of the Nazi invasion. Against a grim background of urban Jewish poverty (strikingly illustrated), the Medem microcosm shines as the very embodiment of robust health and enlightenment. The Bund's secular, socialistic optimism permeates the film and gives it a powerful, unintended irony for post-Holocaust audiences. The introduction features the American labor leader David Dubinsky." National Center for Jewish Film