Herzog Blaubarts Burg ("Duke Bluebeard's Castle") (1963) is a film of the opera Bluebeard's Castle by the Hungarian composer Béla Bartók, written in 1911 to a symbolist libretto by the poet and later film theorist Béla Balázs. The film was made for West German television, Süddeutscher Rundfunk, and was produced by Norman Foster, who also performs the lead role. The designer was Hein Heckroth who brought in his old friend Michael Powell, for whom he had designed a number of films, to direct it. The film, which was shot at Dürer Film Ateliers in Salzburg, Austria, was out of circulation for decades because of legal problems.