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:

• Romania in the past was a poor country, but last year the government announced it had 521 billion leu (113$ billion dollars) revenue. Why is so much? What's the reason?
• Are people who cite the 2nd Amendment honestly familiar with what it establishes?
• In what ways is Bollywood becoming westernized?
• Approximately 1.7 million air conditioners voluntarily recalled for potential mold exposure - ABC News
• Real TikTokers are pretending to be Veo 3 AI creations for fun, attention - Ars Technica
• What are the strangest parts of The Bible?
• Why do Americans and foreigners alike describe the USA as prudish? Why do I see nothing prudish about the USA society? USA feels like one of the loosest countries although Americans claim to be very reserved.
• Japanese Scientists Develop Artificial Blood Compatible With All Blood Types - Tokyo Weekender
• Why can't we send flat Earthers to space and show them the shape of Earth?
• What methods do private investigators use to investigate someone in real life?
• How do you get a teenage boy to care about hygiene?
• My ex got into a relationship within 2 weeks after a breakup. What should I do?
• What is the hidden meaning behind 'Skibidi Ohio', and why is it trending?