In 2013 Jon Negroni came up with a crazy theory about PIXAR movies. He believes that all movies are connected and take place in the same universe. It's well known that PIXAR likes to leave easter eggs here and there in their movies, and also hints to the next movie coming out. It's also common knowledge that some recurring elements keep surfacing in every PIXAR movie, such as the Pizza Planet Wagon,
Negroni's idea originated thanks to a comedy video on Cracked.com where some geeks dicuss the fact that all PIXAR movies are secretly about the apocalypse. After watching the sketch, Negroni started planning out his incredible theory.
It all starts in Brave, where Merida finds out about the will-of-the-wisps, a special magic entity that gives animals and objects human-like life. And there's a mysterious witch that knows of this magic and disappears through wooden doors and knows stuff about the future since she carved the Pizza Planet Truck out of wood.
The theory then goes on explaining how that the will-of-the-wisps gives people also supernatural powers, which brings us to The Incredibles. In The Incredibles, we meet Buddy, a wannabe superhero who creates sentient robots and invents Zero Point Energy.
To see how Inside-Out fits in this theory click here . We just have to wait to see if The Good Dinosaur can be a piece of the puzzle.
For more insight on this theory, check the official website: The Pixar Theory . It's really well done.
Pixar workers have stated that all of these coincidences are not intentional.
But my point is: why do we feel the need to connect everything? It might be because of the influence of comics and their shared universe. Spider-Man, Wolverine and Captain America all share the same world in comic books. But now that Marvel is creating a Cinematic Universe where all movies are connected just like the comics, everybody seems keen to see coherent universes everywhere. It's become a real obsession. Sometimes directors really try hard to connect their movies: Tarantino has his own Tarantinoverse; Kevin Smith created his own View Askewniverse.
It's probably all inspired by advertising purposes, so fans can spend hours and hours finding how everything is connected.
And here you can find some more shared universes.