On January 31, 2005, Greengrass was hired to direct and write the feature film adaptation of [[David Maraniss]]’ non-fiction book [[Kent State Massacre|They Marched into Sunlight]], with [[Playtone]] producing the movie and [[Universal Pictures]] set to distribute.<ref>{{cite news|first=Michael|last=Fleming Jr.|title=Helmer sees U’s ‘Sunlight’|url=https://variety.com/2005/film/markets-festivals/helmer-sees-u-s-sunlight-1117917225/|date=January 31, 2005|website=[[Variety (magazine)|Variety]]|access-date=September 13, 2024}}</ref>