Pure Imagination comes from Willy Wonka and the Chocolate Factory, the 1971 film musical based on Roald Dahl's story, where Gene Wilder performs it as Willy Wonka during the tour of his factory. Written by Leslie Bricusse and Anthony Newley, the song frames the factory as a place where dreams take physical form. Decades later, short-form video creators revived its opening for dreamy transformations, nostalgic montages and gentle parody, keeping the melody familiar to new audiences who may never have seen the original film.