Watch Full Movie Online. Wagner's Lohengrin is the mythical tale of the mysterious Knight of the Grail, who appears to defend the princess Elsa - wrongly accused of the murder of her brother. Highlights of Wagner's most lyrical score include the famous Wedding March, which accompanies the marriage of Lohengrin and Elsa. Superstar tenor Jonas Kaufmann ("currently the hottest tenor in opera" - The New York Times) makes his role debut in this performance from 2009 and filmed in Munich. He is joined by German soprano Anja Harteros - a former winner of the prestigious Cardiff Singer Of The World competition.