The Disappearance of McKinley Nolan is a 2010 documentary film directed by Henry Corra, which follows Michael Nolan on the search for his brother McKinley Nolan, a U.S. Army Private who vanished during the Vietnam War.The circumstances of McKinley's disappearance were mysterious, and his status and whereabouts became classified U.S. military information to which the Nolan family was denied access. Retired Lt. Dan Smith returned 40 years later to the U.S. from Tay Ninh, Vietnam having encountered a nameless American man whom he later photo-identified as McKinley Nolan.

The search for McKinley is a deeply personal journey for his brother Michael and includes groundbreaking footage and interviews of former Khmer Rouge and Viet Cong members.