Trivia: While a sequel was rumored for years, series creator Brad Bird has stated that he would only make an "Incredibles 2" if he could come up with an idea that he felt was just as good as the original. It took 14 years for the film to finally be released - the longest gap between a Disney/Pixar film and its sequel.
Trivia: Due to the long time between the first installment and Incredibles 2, two actors had to be replaced; Spencer Fox, who played Dash, was replaced by Huck Milner due to Fox's voice breaking and being unsuitable for the role, while Jonathan Banks replaced Bud Luckey as Rick Dicker, due to Luckey's passing.
Trivia: When signing the International Superhero Accord, all the Ambassadors, save Henrietta Selick, are name of various crew members that worked on the film. For example, Alan Broiler was the supervising animator. That said she's clearly a reference to Henry Selick, a graduate of California Institute of Arts like director Brad Bird, who went on to direct The Nightmare Before Christmas and Coraline.
Trivia: Mr Incredible's coffee mug is from Insuricare, where he worked in the first film. You can see it when he is learning Dash's maths homework.
Trivia: The jar of bullets which bounced off Bob from his study in the first movie are visible in the boxes of saved junk from the old house.