The popularity of adolescent fantasy movies about cosmic war and the enjoyment of military adventures that we find in World War II movies suggest the unique importance of war-themed culture in fostering solidarity in large, complex, and factionalized societies. War movies offset the power of sub-cultural movements by emphasizing the togetherness to be found in patriotic attachment to the whole society. A review of the history of recent war movies such as "Ender's Game" and "The Monuments Men" raises the possibility of a new militarism among young people. However, the persistence of war-weariness indicates that young people may differentiate fantasies of combat from the recognition of the horrors of real war.