Interethnic tensions pose a significant barrier to the socioeconomic advancement of minority groups. This paper investigates the effectiveness of educational entertainment (or edutainment) in promoting interethnic harmony. We carried out a clusterrandomized field experiment involving over 3,300 households across 120 polyethnic villages in Bangladesh. We find that disseminating information through a documentary film designed to educate the ethnically dominant Bengalis about the ethnic minority Santals in polyethnic villages increased the ethnic majority's prosociality toward minorities. Using emotion-detecting software to analyze facial expressions during the film viewing reveals that empathy played a significant role in this process. On the other hand, we do not find any impacts on the prevalence of negative stereotypes and discriminatory opinions toward minorities. In addition, we find that targeting network-central people with the intervention generated large positive spillovers on others within villages, including Santals. We further corroborate these findings through village-level administrative data showing a reduction in police complaints in treatment villages. Five months after the intervention, we conducted a casual work field experiment involving 720 randomly selected participants from the main intervention. In this casual work task, pairs of ethnic majority and minority participants jointly produced paper bags for a local supplier un-