Question: Which film was produced earlier, The Fighting Prince of Donegal or The Moon-Spinners?
Context: The Warlord of Mars is a science fantasy novel by American writer Edgar Rice Burroughs, the third of his Barsoom series.  Burroughs began writing it in June, 1913, going through five working titles; "Yellow Men of Barsoom", "The Fighting Prince of Mars", "Across Savage Mars", "The Prince of Helium", and "The War Lord of Mars". The Moon-Spinners is a 1964 American Walt Disney Productions feature film starring Hayley Mills, Eli Wallach and Peter McEnery in a story about a jewel thief hiding on the island of Crete.  The film was based upon a 1962 suspense novel by Mary Stewart and was directed by James Neilson.  "The Moon-Spinners" was Mills' fifth of six films for Disney, and featured the legendary silent film actress Pola Negri in her final screen performance. Knat Scatt Private Eye is a two-act, 1930s-style film noir musical, which played for an extended run at The Theater Building in Chicago in 1986, featuring a young Steve Carell.  It was based on a one-act musical with the same title which was originally produced earlier that year by Players Workshop for The Children's Theater of The Second City, and performed on The Second City stage in Chicago.  Both versions of "Knat Scatt Private Eye" were written and directed by Eric Forsberg with music and lyrics by Charlie Silliman. Horrid Henry is an animated television series, based on the book series by Francesca Simon.  It is produced by Novel Entertainment, broadcast from 31 October 2006 on CITV in the United Kingdom.  The animation style differs from the Tony Ross illustrations in the books.  Nelvana produced earlier DVDS. The Fighting Prince of Donegal is a 1966 Walt Disney Productions adventure film starring Peter McEnery and Susan Hampshire, based on the novel "Red Hugh: Prince of Donegal" by Robert T. Reilly.  It was released by the Buena Vista Distribution Company. Animal Farm is a 1954 British-American adult animated comedy-drama film by Halas and Batchelor, based on the book "Animal Farm" by George Orwell.  It was the first British animated feature to be released ("Water for Firefighting" and "Handling Ships", two feature length wartime training films, were produced earlier, but did not receive a formal cinema release).  The US CIA paid for the filming, part of the American cultural offensive during the Cold War, and influenced how Orwell's ideas were to be presented.  The CIA initially funded Louis de Rochemont to begin work on a film version of Orwell's work and he hired Halas & Batchelor, an animation firm in London that had made propaganda films for the British government. The Enterprise is an amusement ride, manufactured primarily by HUSS Park Attractions and Anton Schwarzkopf beginning in 1972.  The HUSS ride was an adaptation and improvement of a design produced earlier that year by Schwarzkopf, with an increased passenger capacity.  Despite not owning the original incarnation of the ride, HUSS was issued the patent. Yo Frankie!  is an open source video game made by the Blender Institute, part of the Blender Foundation, originally scheduled for release in August 2008.  It is based on the universe and characters of the free film produced earlier in 2008 by the Blender Institute, "Big Buck Bunny".  Like the Blender Institute's previous open film projects, the game is made using free software.  "Yo Frankie!"  runs on any platform that runs Blender and Crystal Space, including Linux, Mac OS X and Microsoft Windows. The Yamaha Passol was an electric scooter manufactured by Yamaha Motor Company beginning in 2002, and sold only in Japan.  Weight was 44 kg and claimed range 32 km .  It was described as the first mass-produced electric motorcycle in Japan (the Peugeot Scoot'Elec was produced earlier).  It had a lithium-ion battery.  A Passol-L model with the same motor and bigger battery was released in 2005, and a related electric, the EC-02, featuring a built-in iPod dock, also was released in 2005. Duklja (Greek: Διοκλεία, "Diokleia" ; Latin: "Dioclea" ; ) was a medieval Serb state which roughly encompassed the territories of present-day southeastern Montenegro, from the Bay of Kotor in the west to the Bojana river in the east, and to the sources of the Zeta and Morača rivers in the north.  First mentioned in 10th– and 11th century Byzantine chronicles, it was a vassal of the Byzantine Empire until it became independent in 1040 under Stefan Vojislav ( 1034–43) who rose up and managed to take over territories of the earlier Serbian Principality, founding the Vojislavljević dynasty.  Between 1043 and 1080, under Mihailo Vojislavljević ( 1050–81), and his son, Constantine Bodin (r. 1081–1101), Duklja saw its apogee.  Mihailo was given the nominal title "King of Slavs" by the Pope after having left the Byzantine camp and supported a Slavic uprising in the Balkans, in which his son Bodin played a central part.  Having incorporated the Serbian hinterland (the core of the earlier Serbian Principality, known as "Raška") and installed vassal rulers there, this maritime principality emerged as the most powerful Serb polity, seen in the titles used by its rulers ("Prince of Serbia", "of Serbs").  However, its rise was short-lived, as Bodin was defeated by the Byzantines and imprisoned; pushed to the background, his relative and vassal Vukan became independent in Raška, which continued the fight against the Byzantines while Duklja was struck with civil wars.  Between 1113 and 1149 Duklja was the centre of Serbian–Byzantine conflict, with members of the Vojislavljević as protégés of either fighting each other for power.  Duklja was then incorporated as a crown land of the Grand Principality of Serbia ruled by the Vukanović dynasty, subsequently known as "Zeta", remaining so until the fall of the Serbian Empire in the 14th century.
Answer: The Moon-Spinners