The Sword In The Stone (1963)

Arthur (aka Wart) is a young boy who aspires to be a knight's squire. On a hunting trip he falls in on Merlin, a powerful but amnesiac wizard who has plans for Wart beyond mere squiredom. He starts by trying to give Wart an education (whatever that is), believing that once one has an education, one can go anywhere. Needless to say, it doesn't quite work out that way.

Wart, a measly servant knave, dreams of becoming a knight but is barely certain he may act as castle lord Sir Ector's even ruder son Kay's squire. Then the sorcerer Merlin and his grumpy speaking owl Archimedes invite themselves and move into a dilapidated tower. Merlin, who can magically access the future, accepts the challenge to prepare Wart for a grand future. So he gives the squirt dangerous lessons by transforming themselves into animals to learn the mental skills fitting a knight and a ruler. For the magic sword in the stone, which can confer the kingdom of all England, then still divided, couldn't be withdrawn for years, and now a tournament in London is to designate a contender instead. Kay is going to compete, but the fat klutz stands no chance.

This animated feature is set in medieval times. After the English king dies leaving no heir, in the churchyard of a cathedral in London, a sword appears imbedded in a stone inscribed, "Who so pulleth out this sword of this stone and anvil is rightwise king born of England." Although many try, no one can budge the sword from the stone. Deep in the dark woods, kind, but absent-minded Merlin the Magician begins to teach 11-year-old Arthur, who is called Wart, and lives in the castle of Sir Ector where he's an apprentice squire to burly, oafish Sir Kay -- when he's not washing stacks of pots and pans in the scullery. By being changed by Merlin into various animals, Wart learns the basic truths of life, but he also runs into the evil Madam Mim, who tries to destroy him. Merlin and Mim have a Wizards' Duel, during which each changes into various creatures, with Merlin using his wits to win. On New Year's Day, a great tournament is held in London to pick a new king. Wart, attending as Kay's squire, forgets Kay's sword, and runs back to the inn to get it, but the inn is locked. Wart, seeing the sword in the stone, innocently, and easily, pulls it out. When the knights marvel at the wondrous sword and question where he got it, Wart has to prove himself all over again, and again he pulls the sword from the stone. Wart is proclaimed king by the marveling warriors. Wart as King Arthur is apprehensive of his ability to govern, but Merlin returns to reassure him.