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 flat Earthers still exist even though it is scientifically proven that the Earth is spherical?
• Laws of physics are still broken: Attempt to explain away black holes' central singularity falls short, scientist says - Space
• —— indirects on kuorans, irl and idols
• Why do men find women with bigger buttocks attractive?
• What are some of the most annoying movie clichés?
• Why do men cheat on their wives with someone extremely unattractive?
• Does the pro-choice movement realise that all the money used to subside abortions can be used to subsidize daycare and other financial support for single mothers with unplanned pregnancies?
• Was there any slavery of white people that actually compares to the transatlantic slave trade? I’m not baiting or anything actually genuinely curious and want to know.
• Real-World GLP-1 Weight-Loss Results Differ From Trials - Medscape
• I want to have anal sex, but my wife refuses. What do I do?
• What is a good comeback for when someone calls you flat?
• Trump is going to target known criminals in the country illegally for deportation. The Democrats have vowed to fight him every step of the way. Don't they understand this is one of the issues that cost them the white house, the house and senate?
• Do all you people that took the "jab" feel lied to yet?
• Ok, so this is a question seeking an answer to clear up whatever gymnastics are in my head. I'm a moderately attractive guy, sincere heart, genuinely looking to love another, established. Why don't women that I'm attracted to, want me back?