Promoted as a happy-happy-joy-joy family musical by Paramount Pictures, Willy Wonka and the Chocolate Factory is a deliciously black comedy, perversely faithful to the spirit of Roald Dahl's original book Charley and the Chocolate Factory. Enigmatic candy manufacturer Willy Wonka (Gene Wilder) stages a contest by hiding five golden tickets in five of his scrumptuous candy bars. Whoever comes up with these tickets will win a free tour of the Wonka factory, as well as a lifetime supply of candy. Four of the five winning children are insufferable brats: the fifth is a likeable young lad named Charley Bucket (Peter Ostrum), who takes the tour in the company of his equally amiable grandfather (Jack Albertson). In the course of the tour-which at times resembles a thrill ride from Hell-Willy Wonka punishes the four nastier children in various diabolical methods: one kid is inflated and covered with blueberry dye, another ends up as a principal ingredient of the chocolate, and so on (we are assured at the end that the kids aren't really being hurt, but the film's mean streak remains intact). This is because these kids have violated the ethics of Wonka's factory. In the end, only Charlie and his grandfather are left. Suddenly, Willy Wonka turns vicious, informing Charlie that, by drinking a magic potion without permission, he has lost out on the lifetime supply of chocolate. Angrily, grandfather threatens to expose the secret of Wonka's "Everlasting Globstopper" machine. But honest Charley refuses to do this. With a broad smile, Willy informs Charley that he's passed the final test, and is fully deserving of his chocolaty reward. The songs by Anthony Newley and Leslie Bricusse are hummable if largely forgettable: the one that remains longest in the memory is the "Oompah! Oompah!" leitmotiv, performed by Willy Wonka's army of midgets and dwarves. Ostensibly set in England, Willy Wonka and the Chocolate Factory was lensed in Germany (as revealed by the film's final overhead shot).