A Kid in King Arthur's Court (1995)

Calvin Fuller is a nerdy young adolescent living in Reseda, California. The gangly, unsure youth is first seen at a baseball game, standing at bat, ready for yet another strike out. Suddenly a terrible earthquake hits; as the others run for safety, the ground opens up under Calvin's boots and he falls through the chasm. He falls and falls until he finds himself landing on the head of a 6th-century black knight. Upon hearing of his miraculous appearance, the elderly King Arthur, seeing him as the savior whose appearance Merlin has predicted, dubs the boy Calvin of Reseda and invites him to dine with the court. Calvin begins his knight training to help Arthur retain his crown. When the earthquake hit, Calvin was lucky enough to grab his knapsack, a fact that enables him to wow the Arthurians with his futuristic 'magic', including an introduction to rock and roll via CD player, and a wonderful Swiss Army knife. The young wizard also shows them how to make inline rollerskates. His work wins him adulation and renown; but it also rouses the jealousy of the wicked Lord Belasco, who will use any means to take over the throne. Meanwhile, Calvin finds himself falling for young Princess Katey.