According to Variety, Universal Pictures has set Paul Greengrass to write and direct They Marched Into Sunlight, an adaptation of the Vietnam War-era book by the Pulitzer Prize-winning David Maraniss.

The book focuses on parallel stories that took place on two days in October 1967. On one side of the world, U. of Wisconsin students protested against Dow Chemical for its production of napalm. The peaceful antiwar demonstration escalated into a riot. At the same time, a platoon of U.S. soldiers was ambushed by Viet Cong. A fierce firefight claimed the lives of 61 Americans. The two unconnected events galvanized opposition to the war on college campuses.