The Pixar Theory proposes that all Pixar films take place in the same universe and timeline. The timeline involves three groups - humans, animals, and artificial things - battling for dominance. The films provide clues and evidence to support this theory, such as the appearance of the corporation Buy-N-Large in Wall-E and Toy Story 3, suggesting a progression towards its future control over the world as shown in Wall-E.

2. The Pixar Theory is that the whole Pixar world
runs on one constant time in the same universe.
Through out this timeline its all about 3 groups of
things (Humans, Animals, and Artificial Things)
battling against one another. Which one very smart
man finally stuck together all the pieces and put it
into a brilliant theory. That mans name is Jon Negroni
who calls himself the “Pixar Detective”
http://jonnegroni.com/2013/07/11/the-pixar-
theory/ (His webpage)

3.  A Bug’s Life
 Toy Story 2 & 3
 Monsters Inc.
 Finding Nemo
 The Incredibles
 Cars 1 & 2
 Ratatouille
 Wall-E
 Up
 Brave
 Monsters University

4. Brave
In Brave Merida discovers magic which
turns her mother into a bear, and back but
where's the fun in that, anyway this really weird
witch who can make rooms seem different and
make kitchen knifes turn into killing machines.

5. This is the only movie out of all Pixar movies
to explain why animals and machines (the jist of
everything else other than animals) act and talk
like humans.
BECAUSE OF THIS CRAZY DARK AGE
SPELL CASTING WITCH

6. So if this crazy witch did use her whodoo
voodoo magic on Merida and her family why
wouldn’t she use it on other humans creating
things like Ratatouille, Nemo, and Doug
That’s right… Ratatouille, Finding Nemo,
and Up.

7. We begin to see animals becoming smarter
and learning things that are normally seen
humans doing them (aka cooking, looking for lost
children, and talking)
But what ever happened to the mean old
cook from Ratatouille is it possible that he went
and spread rumors of this food cooking
mouse????!!!!!

8. Maybe rumor of Food Cooking Mice spread
everywhere and one crazy man made an
invention to allow animals to talk.
WHO COULD THAT BE?! Oh yeah Charles
Muntz from Up could he have heard these
rumors and created such machine and gave
talking powers to dogs. (DOUG)

9. In the beginning of Up, Carl is forced to give
up his house to a corporation because they are
expanding the city. Think on that. What
corporation is guilty for polluting the earth and
wiping out life in the distant future because of
technology overreach?
That’s right Buy-N-Large

10.  Buy-n-Large (BNL), a corporation that runs
just about everything by the time we get to
Wall-E.
 We’re told that BNL has even taken over
everything basically. BUT WERE NOT DONE
YET. This is the same organization showed in
Toy Story 3