Knighty Knight Bugs (1958)

Plot

King Arthur's realm and the Round Table knights have fallen into gloom ever since the Dark Knight made off with the Singing Sword, guarded now by a fire-breathing dragon. Bugs Bunny, the court joker, jokes that only a fool would attempt to retrieve it—so the king promptly assigns him the task. Bugs sneaks boldly into the Dark Knight's fortress, catching his foes asleep at first. But when the sword's song rouses the knight and dragon, can this witty fool still pull it off? A moat, portcullis, and catapult all come into play.