Dick Deadeye, or Duty Done is a 1975 British animated film musical, based on the comic operas of Gilbert and Sullivan. The comically convoluted plot is a pastiche of many of the operas in the Gilbert and Sullivan canon, particularly Trial by Jury, The Sorcerer, H.M.S. Pinafore, The Pirates of Penzance, Patience, Iolanthe and The Mikado, in which the principal character, Able Seaman Dick Deadeye, is sent by Queen Victoria on a quest to recover the "Ultimate Secret" from the Sorcerer, who has stolen it. Animation and direction were by Bill Melendez, who produced the Charlie Brown television cartoons, based on character drawings by veteran cartoonist Ronald Searle. The film's release was accompanied by the original release of a deluxe-jacketed LP soundtrack recording and a colourful storybook by Jeremy Hornsby, with colourful Searle-inspired art.