Sir George (Gary Lockwood, a.k.a. Frank Poole from ''Film/TwoThousandOneASpaceOdyssey'') is the foster son of Sybil (Estelle Winwood), an elderly witch. Not much is said about his background, other than that [[ParentalAbandonment his parents are dead]] and he is of RoyalBlood. He is secretly in love with Princess Helene (Anne Helm), who is kidnapped early in the film by the evil wizard [[EvilSorcerer Lodac]] (Creator/BasilRathbone).

George wants to go on a quest to liberate his lady love, but Sybil believes he is too young. She comforts the youth by showing him a magic sword, a steed, a suit of armour, and a group of magically frozen knights -- all his to command when he turns 21. But the impatient George tricks Sybil into a locked underground cellar and immediately takes off with his magical implements and the revived company of knights.

''Sir'' George and his party then appear before the king, who looks like Grady from ''Series/SanfordAndSon'', and insist on journeying to Lodac's castle to rescue his daughter, even though this angers the knight who had previously been given the task. To save the princess Helene, George and his companions must go through Lodac's seven curses.

This film also had some of its footage reused in ''Film/TheManWhoSavesTheWorld''.

Not to be confused with ''WesternAnimation/QuestForCamelot'', which was known as ''The Magic Sword'' in some territories.

For the ''Series/MysteryScienceTheater3000'' episode see ''[[Recap/MysteryScienceTheater3000S04E11TheMagicSword here]]''. Podcast/RiffTrax released their own version on August 14, 2015.

!!This movie has examples of:

* AuthorityEqualsAsskicking
* BackFromTheDead: Sir George's band of knights somehow come back to life.
** Maybe Lodac's curses had NoOntologicalInertia.
** It's implied that Sybil did it somehow with Lodak's ring.
* BalefulPolymorph: Lodac turned the Hag into a spider.
* BigBad: Lodac.
* BMovie
* CheeseEatingSurrenderMonkeys: Subverted; the French knight is probably the bravest out of the crew. He almost gets done in by way of a different French stereotype: the horny Frenchman.
* CoolHorse: George's horse.
* CoolSword: George's sword.
* CreditsGag: The person who worked the dragon puppet for the film is listed in the credits as a "dragon trainer."
* DamselInDistress: Princess Helena.
* DeathIsCheap: The party of knights drop like flies throughout the film, then are resurrected at the end.
* DisposableWoman: The two princesses before Princess Helena.
* TheDragon: Classic Western style, fire breathing and all.
* EverythingsBetterWithMonkeys: Sybil has a chimpanzee in her house.
* EverythingsBetterWithPrincesses: Princess Helene.
* EvilSorcerer: Lodac
* GoodWitchVersusBadWitch: Sybil v Lodac. Notably, there never is an actual "magic duel", as Sybil states early on that she would be no match for Lodac. She defeats him in the end only after pilfering his magic ring during a moment of distraction.
* HereThereWereDragons
* HeroSecretService: The frozen knights are this for George.
* HeroicFantasy
* InvincibleHero: George. His armor protects him from anything, his horse can run at super speed, and his enchanted sword can kill an ogre ''and'' a dragon in a single stab. In fact, it takes Sybil ''depowering'' him by accident to introduce anything resembling danger to the guy.
** FailureHero: George after losing his magic, only surviving the fifth curse because of a HeroicSacrifice, and only escaping his prison cell because the Little People rescue him.
* {{Jerkass}}: Sir Branton
* KnightInShiningArmor: George and his Knights.
* TheLostWoods
* MagicMirror: Sybil's mirror.
** CrystalBall: The magic pool George uses in his first appearance.
* MasterOfIllusion: Lodac
* MauveShirt: The team of knights.
* MultinationalTeam: George's band of knights. We have Spain, France, Germany, Ireland, Scotland, and Italy represented. It is probably not coincidence that the seven knights are named for the patron saints of said nations.
* NamedWeapons: The titular sword is named Ascalon.
* NewPowersAsThePlotDemands: Sybil mentions most of the items' magical powers, but a few just come out of nowhere, such as the sword being able to move on its own to rescue George, or the Hag-banishing shield.
* ObviouslyEvil: Lodac. Pitch black sorcerer robes? Check. Blood red turban? Check. Unbelievable sadism and zero empathy for others? Check!
* OohMeAccentsSlipping: Sir Patrick.
* ParentalAbandonment: George is an orphan of RoyalBlood but movie doesn't explain more than that.
* PowerGlows: George's sword glows when it does... whatever exactly it does. Also his shield when it's banishing Hags.
* PowerPerversionPotential: The pond George has been using to "watch" Princess Helene.
* TheQuest
* RedshirtArmy: George's knightly companions are mainly there to be cannon fodder to show how dangerous the journey is.
* ReligionIsMagic: When he dies, Sir Patrick is able to save his George from the current curse through the power of his faith.
* RewardedAsATraitorDeserves: After returning Lodac's ring, Sir Branton gets turned into a hunting trophy by Lodac.
* RingOfPower: Lodac's, which he lost. Branton found it, and it's how he's getting Lodac to help in the princess kidnapping gambit. In the end, Sybil gets it.
* ShirtlessScene: George when he's locked up in Lodac's dungeon.
* SkinnyDipping: Princess Helene is introduced swimming nude in a lake, [[OutdoorBathPeeping while George watches using the magic pool]].
* StalkingIsLove: George to Helena.
* StopTrick
* SupervillainLair
* SwampsAreEvil: They suck up your dudes and [[StrippedToTheBone strip them to the bone]].
* TooDumbToLive: Sir Branton. He cannot be harmed by Lodac while wearing his RingOfPower. Instead of [[CombatPragmatist using this protection to finish off Lodac himself,]] [[WhatAnIdiot he trades it for Princess Helene]] [[IGaveMyWord as per his agreement with Lodac,]] [[DidYouActuallyBelieve despite him questioning Lodac's own word]] [[FalseFriend and betraying his actual allies.]] This is especially bad since Branton had actually ''pointed out how stupid he would have to be to do this'' in an earlier scene.
** While the ring does protect Branton by wearing it, Lodac states that [[{{Muggles}} he has no way of using the ring's full potential]]. It is possible therefore that if Branton simply tried to run Lodac through, he may have ended up as a wall mount anyway.
* TwentyFourHourArmor
* {{Upgrade Artifact}}s: The titular "Magic Sword" and George's horse. As well as Lodac's ring, which turns him from one of the strongest wizards to THE strongest, and puts Sybil on his level when she gets it.
* TheVamp: The Hag, when she's putting on the {{Fanservice}}.
* VirginSacrifice: "My little pet will be ''hungry'' again in six days' time." (Dragon roars)[[note]]'''Crow''': Er, five days time.[[/note]]
* VoluntaryShapeshifting: Lodac and Sybil have the ability to change into birds, and Sybil can also change into a black panther. She uses that form to kill Lodac at the end of the film.
* WeAreTeamCannonFodder: George's knights exist to get wiped out by the curses.
* WeHardlyKnewYe: Ulrich and Pedro are the first of the knights to die.
* YouHaveNoChanceToSurvive: Lodac's final lines are spent monologing about how George and Helene are about to be destroyed by the seventh and final curse -- Lodac, himself.