Pure Imagination was written by Leslie Bricusse and Anthony Newley for the 1971 film Willy Wonka and the Chocolate Factory, where Gene Wilder sings it as the chocolate room is revealed. The song has since been covered by many artists and reworked into piano and orchestral arrangements that circulate widely online. Its association with wonder and invention made it a staple for trailers, adverts and fan edits, and this instrumental version is now reused whenever a creator wants instant nostalgia and a sense of childlike possibility.