Dick Deadeye, or Duty Done is a 1975 British animated film musical, based on the comic operas of Gilbert and Sullivan.
Queen Victoria sends Dick Deadeye Victor Spinetti, a sailor, to recover the Ultimate Secret from two thieves, the Sorcerer Peter Reeves and his reptilian henchman, the Shameleon. They are trying to sell it to the Pirate King George Cooper, sung Ian Samwell. At a military parade Entrance of the Peers, Dick sees the Sorcerer speaking with the Pirate King. There, Nanki John Newton, sung Casey Kelly sees his evil twin brother Poo same, who is picking pockets. Dick goes for backup to headquarters, the Hexagon Heres a howdeedo, finding the Captain Peter Reeves and the MajorGeneral Francis Ghent, sung John Baldry I am the very model of a modern major general.Dick then goes to the pirates lair, The Queens Nose Oh, better far to live and die. There, Rose Maybud Julia McKenzie, sung Liza Strike, the barmaid, wants to find a man of pure evil, so she can reform him. She and Dick have a moment Prithee, pretty maiden, but she loses interest, since he is good. The Sorcerer and his sidekick arrive My name is John Wellington Wells. The Pirate King finalizes the deal to buy the Secret for a modest sum of pirate booty, and the Sorcerer goes to get it, followed by Dick. ........
Source: Wikipedia