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 makes a woman attractive?
• What are 50 random facts about yourself?
• Do most men prefer curvy women or skinny women?
• How do people move on so quickly? I’m still sprung over someone I was dating and he found someone else so fast. I feel hurt because I’m still head over heels over him while he’s out enjoying his life with someone new
• Why do only ugly women like me on Tinder? Is it because I'm an ugly man?
• Anti-doping watchdog urges US authorities to shut down planned drug-fueled event in Las Vegas - AP News
• What if Homelander turned out to be a good guy instead of an evil milk drinking manchild? Nobody seems to touch on this much.
• Starbucks Enters the Protein Wars With Test of New Drink Option - Bloomberg.com
• What kind of book did you write after turning 55?
• If everyone in Russia dropped into holes in the ground only never to return, would that be good for NATO and international peacekeepers? Can we convince Russians to be less diabolical, so they coexist? Does Putin stink like doo doo in the commode?
• When North Koreans visit other countries for the Olympics, what stops some of them fleeing away into that host country?
• Which album is your favorite that's now 50 years old (from 1975), and what's the best song on the album?
• Why do so many guys love anime girls?
• Can cheating be a result of not truly loving or caring for someone, or is it sometimes just a spur of the moment decision?
• If babies could write, what questions would they ask on Quora?