Sweeney Todd: The Demon Barber of Fleet Street is a 2007 musical slasher film directed by Tim Burton from a screenplay by John Logan, based on the stage musical of the same name by Stephen Sondheim and Hugh Wheeler, which in turn is based on the 1970 play Sweeney Todd by Christopher Bond. The film retells the melodramatic Victorian tale of Sweeney Todd, an English barber and serial killer who, while seeking revenge on Judge Turpin who wrongfully convicted and exiled him to steal his wife, murders his customers and, with the help of his accomplice, Mrs. Lovett, processes their corpses into meat pies.

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".