Watch Mozart: Idomeneo (1970) : Full Movie Online Free Mozart authority John Pritchard conducts the London Philharmonic Orchestra and the Glyndebourne Chorus in this dazzling production of Mozart's opera "Idomeneo," a tale of a king who unwittingly swears to the gods that he will sacrifice his own son. Richard Lewis stars as the tragic king, and Bozena Betley is the selfless Ilia, who offers Idomeneo a way out of his dilemma. Josephine Barstow, Leo Goeke and Alexander Oliver also star.