Kermit caused 9/11, not really much of a fan theory though since it’s unintentionally canon
Edit: Realized this should be explained, in the 2002 TV film “It’s a Very Merry Muppet Christmas Movie”, there’s a part where an angel shows Kermit an alternate reality where he was never born. For whatever reason, the editors didn’t really think about it, and continued to use footage with the twin towers still standing for this scene, however they aren’t there in his original universe. Therefore, something that Kermit did in his life, did in fact cause 9/11 in Muppet lore.
Andy’s parents are in the middle of a divorce when the first Toy Story is taking place.
Scooby Doo is a show about draft dodgers during the Vietnam War
The Last Airbender is not, as many have suspected, meant to be a big screen version of the TV show of the same name. It is, in fact, a subtle but clear adaptation of the show’s episode “the Ember Island Players,” in which a poorly informed in-universe theater troupe recap the events of the series in an inaccurate and comedic style.
This was a Reddit post awhile ago actually but the theory was : In Empire Strikes Back, when Luke tells R2 to stay in the ship at various times, he doesn’t stay put, because the last person to tell him that was Anakin and he never came back
James Bond’s primary purpose is to be a distraction to keep attention off the spies who actually spy. Villains and other spies know him, he rarely takes an alias, he makes his presence known early on and keeps messing up operations for the villains, but other spies have already infiltrated their ranks and work while Bond does as much visible damage as possible to keep the others safe.
Peter Pan kills any lost boy that grows into adulthood. Captain Hook and his pirates are all lost boys that have escaped and aim to stop him