The Man Left Behind (2012) 2012, Documentary, History, United States, Vietnam, War The Man Left Behind (2012) Duration: 1H31M Description: Chronicles the return of U.S. Army Col. (Ret.) Paul R. Longgrear to the battlefield at Lang Vei, Vietnam, where in 1968 he faced down North Vietnamese tanks and was forced to make the most difficult decision of his life… Trailer ↗ United States Vietnam 2012 Documentary History War