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:

• Why do a bra and panties have to match?
• Is Europe willing to risk losing its alliance with the United States, if they choose to continue the war in Ukraine?
• Mets place Mark Vientos on 10-day IL, option Max Kranick in flurry of roster moves - SNY
• AI risks 'broken' career ladder for college graduates, some experts say - ABC News
• Why do people have trouble accepting the very true fact that "The Blue Marble" photo of Earth is a composite and therefore (just like every other subsequent "picture" of Earth NASA has ever shown us) not a real photo but computer generated?
• Dakota Johnson Realized This Outfit Mistake Mid-Interview — And Her Reaction Was Priceless - HuffPost
• Porsche Still Offers The Single Greatest And Possibly Most Excessive Feature In All Of Automobiles - The Autopian
• Why was the rock band Kiss so successful?
• Is it true that all men want a woman who looks like an Instagram “model”?
• Did Obito ever fully redeem himself in everyone's eyes?
• Why do liberals think same-sex marriage is alright? The Bible makes it very clear that it's not alright to be gay, why can't liberals understand that?
• Texas Tech ends Oklahoma's 4-year run as Women's College World Series champ with walk-off 3-2 win - AP News
• Wanda Sykes delivers epic 26-minute acceptance speech, mentions every other winner at event and speaks up for trans people - CNN
• What are some good Caribbean islands to travel to with friends or family? Why?