A Telltale Shadow
Even then, the timeline of the Pixar universe is also portrayed in the film, as Remy’s escapades across Paris bring him dangerously near to an unseen dog.

A Telltale Shadow
However, a closer look of the dog’s shadow reveals it to be a dead ringer for Dug, the fan-favorite canine from Pixar’s Up, who first appeared here years before his own film was released — and presumably before a groundbreaking collar allowed him to communicate in English.
Wall-E’s Future
As upbeat and positive as Pixar’s films are, Wall-E demonstrated that if every story is set in the same imaginary environment, they are always doomed to a tragic conclusion. Set decades in the future, Wall-E follows a lone sanitation robot tasked with cleaning up the Earth after it has been transformed into a giant landfill.

Wall E’s Future
One large box retailer – Buy n Large – is directly responsible for the disaster, as their corporate logo appears throughout the film. To underscore the fact that all of Pixar’s humans are doomed, the BnL logo is displayed on Buzz Lightyear’s batteries in Toy Story 3. He’ll at least have company, as Wall-E’s collection also includes Rex.