Yes, this theory suggests that Bing Bong wasn't just an imaginary friend, but a Monsters, Inc. employee that Riley loved and interacted with as a very young girl. Now in present day, Riley simply remembers Bing Bong as an imaginary friend and not as an actual monster she played with. So Inside Out takes place in present day and is directly connected Monsters, Inc. time-traveling universe.

Could that mean that Bing Bong is a living, breathing creature somewhere in Monsters, Inc.'s world and not just an imaginary friend who disappeared from Riley's subconscious? Possibly.

Oh, yes. Let's get to those Easter Eggs that appear in every Pixar movie and serve as the driving force behind this theory. Here are some of the big Easter Eggs spotted by Jon Negroni in Inside Out thus far that proves it's in the timeline as well:

•Some of Riley's memories shown in the background show scenes from Carl and Ellie's life in Up. Does that mean Riley's family has a possible connection to their characters?
•There is a banner in Riley's hockey rink featuring a Tri-County team. Tri-County is the setting for Toy Story.
•Cars in the movie have bumper stickers from the movie Cars
•The globe in Riley's classroom is also the very same globe from every single Toy Story film.

What do you think of this Inside Out theory? Could Bing Bong really be alive and well??

Frozen flashback! Check out all the stars hitting the carpet at the Frozen premiere!