Willy Wonka & the Chocolate Factory is a 1971 American musical fantasy film directed by Mel Stuart from a screenplay by Roald Dahl, based on his 1964 novel Charlie and the Chocolate Factory. It stars Gene Wilder as chocolatier Willy Wonka. The film tells the story of a poor child named Charlie Bucket who, upon finding a Golden Ticket in a chocolate bar, wins the chance to visit Willy Wonka's chocolate factory along with four other children from around the world.

Musical film is a film genre in which songs by the characters are interwoven into the narrative, sometimes accompanied by dancing. The songs usually advance the plot or develop the film's characters, but in some cases, they serve merely as breaks in the storyline, often as elaborate "production numbers".