Was Loot or Tab Hunter Confidential based on an autobiography?
Loot (2008 film):  It follows amateur treasure hunter Lance Larson in search of buried treasure from World War II, with the help of the two US war veterans—Darrel Ross and Andrew Seventy—responsible for burying them. Tab Hunter Confidential: Tab Hunter Confidential is a 2015 American documentary feature film focusing on the American actor, singer, and author Tab Hunter, and is inspired by his autobiography of the same name.
Tab Hunter Confidential