Charlie and the Chocolate Factory is a 2005 film that is the second movie adaptation of the 1964 Roald Dahl children's book of the same name. The film centers around the young poor boy Charlie Bucket, and the resurface of famous chocolatier Willy Wonka, who's stashed five golden tickets in Wonka Bars across the world. The tickets' finders, including Charlie and four spoiled children, are allowed into his chocolate factory and given the chance to win a special prize.
One of the spoiled children, the fiery competitive gum-chewing Violet Beauregarde, tries Wonka's experimental three-course meal gum that ends up inflating her into a big blueberry once it gets to dessert, blueberry pie and ice cream. Originally, Violet's transformation was to going to be handled practically, with her actress AnnaSophia Robb wearing an inflatable tracksuit identical to the blue one her character wears. However, the director, Tim Burton, did not like the look of it and therefore decided to use a combination of Robb, animatronics and CGI to transform the little girl into a large, ten-foot blueberry. Footage of Robb in the suit as well an experimental run with another woman is shown in the behind-the-scenes featurette 'Under the Wrapper', which also details with the process of creating the Violet blueberry.