123Movies. Shot live from the Winter Garden Theatre in New York City, this presentation of the 1980 Broadway revival of the beloved Lerner & Loewe classic follows King Arthur, who founds the kingdom of Camelot and the Knights of the Round Table. Their goal: fight for justice and right, but Arthur only sees his ideal crumble when his wife Guenevere falls in love with his favorite knight, Sir Lancelot.