Monsters Inc. is my favorite Pixar movie, and I like to think I know a whole lot about it. The Pixar Theory is an elaborate theory that includes movies such as Monsters Inc., Brave, Toy Story 3, A Bug’s Life, and more. The Pixar Theory is a famous cartoon theory explaining that all Pixar movies are set in the same universe and all link together. 9. It all began in 1995 when Toy Story hit theaters and became an instant hit. These theories are certainly worth pondering – particularly because of how calculatedly genius Pixar is at its craft. Toy Story, A Bug's Life, Monsters Inc., Finding Nemo, The Incredibles, Cars, Ratatouille, Wall-E, Up, and Brave and are all included in this theory. We asked the BuzzFeed Community for their favorite Pixar theories. The Pixar Theory is the idea that every Pixar movie exists in one, unifying timeline, starting with Brave in the 14th/15th century and going all the way up to 4500-5000 AD in Monsters, Inc. Pixar is now an animation powerhouse that delivers massive hits on almost a yearly basis. Toy Story 3 is arguably the darkest film in Pixar's flagship trilogy, but it's still a heartwarming tale about friendship, growing up, and sticking together through the hardest times (like, say, during a Randy Newman song montage). Most Popular. The Internet is the hub of conspiracy theories, and when these people made these insane discoveries, it didn't take long for them to post them online. Fans are almost as imaginative as the movies Pixar makes as these 25 theories about them may be weird enough to be true. Pixar movies seem to spawn more fan theories than many other franchises, and for some reason, none of them end with "happily ever after." Here are the insane results. The original Pixar Theory: As of this writing in 2013, Brave is the first and last movie in the timeline. —fnchdarcy. Oh, and also it's about the mass extermination of millions of people in concentration camps. Pixar. The timeline begins with Brave, which is set in the dark ages and it ends with Monsters Inc, which takes place around the year 4500. They called it the “dark Pixar” universe. The conspiracies found on this list cover both Disney and Pixar films, and can get pretty dark. Be warned, though — sure, some of these Pixar fan theories are fun and circuitous, but others can get pretty dark. Obviously, this movie about a Scottish kingdom during the Dark Ages is the earliest time period covered by the Pixar films, but it’s also the only Pixar movie that actually explains why animals in the Pixar universe behave like humans sometimes. It wouldn't be a Pixar movie if they didn't just go for the jugular right at the beginning, aka the Bambi approach.Finding Nemo is no different — viewers are welcomed to a beautiful world and we're introduced to lovable characters: Marlin and Coral. Pixar Dark, tbh. If you’re into Pixar theories, you’ll mightily enjoy this list and have some fun tidbits for the next trivia throw down. For instance, the theory about the witch from Brave being Boo from Monsters, Inc. is only part of one major theory. The theory was created by Jon Negroni. The theory is that all the Pixar movies take place in the same universe and so the characters are all somehow connected. The clownfish couple are relishing in their newfound role as parents as they gaze upon the school of orange fishy babies that Mama gave birth to.