Can you give an example of a documentary where the person telling the story believed it to be true, but it turned out to be false?

Read also:

• What seemingly minor decision or moment in your past ended up having a massive impact on your entire life trajectory?
• What was the weakest period in US history in terms of military strength? Was it during World War II or the Vietnam War?
• Why do Indian parents force their kids to do stuff?
• Do straight guys like to have sex with men when they smoke meth?
• When writing a novel, how can a character be developed well, but QUICKLY?
• Why are there so many girls and not enough boys to follow?
• Cher’s Son Elijah Blue Allman Hospitalized After ‘Acting Erratically’ - Rolling Stone
• Why does my penis look like a mushroom when it gets big?
• Why is the world male-dominated?
• Which is the correct Tamil New Year, Thai-1 or Chithirai-1?
• What it is like to have sex with a relative woman?
• Sorry, Trump supporters, but eventually it will have to be asked: Why didn't Trump do as well in his first term as he is doing NOW?
• Corey Conners withdraws from U.S. Open after injury striking camera cable - Awful Announcing
• Can you summarize season 1 of "The Acolyte"?
• If a person stops thinking one or two words in a second or half second means he had stopped thinking for half second?