Cameos, in-jokes, re-used animation and other trivia from Toy Story 4.
- Toy Story 4 will be the second Pixar film to be released on June 21, after Monsters University.
- This is the first Toy Story film to be shot in the 2.35:1 aspect ratio, unlike the first three Toy Story films which were produced in 1.85:1.
- Don Rickles, Mr. Potato Head's voice actor, passed away on April 6, 2017 before he could record any lines for the film. However, Mr. Potato Head is confirmed to appear, as he is in the film's teaser trailer.
- John Lasseter was set to direct the fourth Toy Story film after directing both Toy Story and Toy Story 2. Lasseter left the direction of Toy Story 3 to Lee Unkrich while he directed Cars 2. However, Lasseter stepped down as director due to having a busy schedule and has announced that he will be retiring from both Pixar and Disney at the end of 2018, leaving Josh Cooley as the film's sole director.