It will also be screened in 3D - only the second time in the history of the festival a film has been shown in the format after Pixar's Up opened in 2009.
The movie has proved a huge hit for Disney even though many analysts predicted that a cartoon with a cranky old man as the lead would never live up to Pixar's previous successes.
Most Pixar films are rated G, though "Brave, " "Up, " and "The Incredibles" were rated PG, a signal that they might contain some material unsuitable for children.