9. Jonathan Isn't Shown Taking Pictures Of Nancy Undressing - Stranger Things
Here's an instance of the Mandela Effect so pronounced it damn-near caused a fan revolt against Netflix.
Last year, Stranger Things creators the Duffer Brothers admitted that they've made small editorial changes to episodes after their release to fix continuity errors and visual effects issues, and so fans en masse came to believe that a "problematic" moment from an early episode had been given the chop.
Upon rewatching the second episode of the first season, "The Weirdo on Maple Street," many angrily reported that Netflix appeared to edit the scene where Jonathan (Charlie Heaton) secretly takes photos of Nancy (Natalia Dyer) getting undressed, seemingly in an attempt to "sanitise" his character and make him seem less creepy.
Except, this just isn't true. If you check the Blu-ray release of the show's first season, we never directly see Jonathan taking the photos of Nancy removing her clothes.
Yes, we see Jonathan take a photo of Nancy with her clothes on, but as she undresses the perspective cuts to inside the room, and we never actually see him snap the photos once her clothes start coming off.
It's only in the next episode that we see the photos of Nancy in a state of undress and know that Jonathan did indeed keep snapping away.
People's memories are simply messing with them - they remember the picture Jonathan took and therefore assume we must've seen him physically take the photo during the scene where he spies on her.
And so, combined with the Duffers' admission of tweaking existing episodes, it caused some overzealous fans to angrily assume that they tinkered with the scene after-the-fact.
Basically, fans need to chill the hell out.