 Most of the reviews of the documentary have been favorable.The documentary uses film footage shot between 2007 and 2008 by photojournalist Tim Hetherington, who died in 2011 while reporting on the Libyan Civil War.Hetherington spent approximately 10 months with 'Battle' Company, 2nd Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade Combat Team, U.S. Army at Restrepo outpost.