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 are your controversial and hot takes on Naruto?
• Netanyahu says ‘we’ll do what we need to do’ with Iran’s leader - Financial Times
• If you get a chance to have sex with either Kajal Agarwal or Samantha, who would you choose and why?
• Does a person with schizophrenia hear voices?
• How do you cope when your mother doesn't love you?
• Rangers Place Tyler Mahle On 15-Day Injured List, Recall Kumar Rocker - MLB Trade Rumors
• How do you identify a woman player?
• How much should one budget to travel for 1 month generally?
• Low-carb diets linked to reduced depression symptoms — but there’s a catch - PsyPost
• Who is the most annoying character in the Office?
• What is a common thought that keeps people up at night? Why do some people experience this?