Every Pixar movie is connected and Jon Negroni explains how. Several months ago, I watched a fun-filled video on Cracked.com that introduced the idea (at least to me) that all of the Pixar movies actually exist within the same universe. Since then, I've obsessed over this concept, working to complete what I call "The Pixar Theory," a working narrative that ties all of the Pixar movies into one cohesive timeline with a main theme. This theory covers every Pixar production since Toy Story. That includes:
A Bug's Life
Toy Story 2
Monsters Inc.
Finding Nemo
The Incredibles
Cars
Ratatouille
Wall-E
Up
Toy Story 3
Cars 2
Brave
Monsters University