Tony Palmer directs this documentary which examines the link between the character Parsifal from Wagner's opera, Indian Jones, portrayed in films by Harrison Ford, and Nazi dictator Adolf Hitler - all three were searching for the Holy Grail. The film includes footage of 'Parsifal' starring Plácido Domingo in the title role and an interview with Wagner's grandson Wolfgang Wagner.

Finnish bass Matti Salminen takes the lead role in this production of Mussorgsky's opera performed at Barcelona's Gran Teatre Del Liceu in 2004. Sebastian Weigle conducts, with additional performances by Eric Halfvarson, Anatoly Kotcherga and Philip Langridge.

A visually spectacular interpretation of Wagner's opera, staged by the Catalan theatre company La Fura dels Baus, in Valencia's Palau de les Arts. Zubin Mehta conducts the Orquesta de la Comunitat Valenciana, with performances by Lance Ryan, Ralf Lukas, Franz-Josef Kapellmann and Matti Salminen.

The Catalan theatre company La Fura dels Baus's visually captivating interpretation of Wagner's opera, performed at Valencia's Palau de les Arts in June 2009. Zubin Mehta conducts the Orquesta de la Comunitat Valenciana, with performances by Jennifer Wilson, Juha Uusitalo, Peter Seiffert and Matti Salminen.

Zubin Mehta conducts the Teatro alla Scala Orchestra and Chorus in this production of Verdi's opera, recorded in Italy in 2015. The cast includes Carlo Colombara, Anita Rachvelishvili, Kristin Lewis and Fabio Sartori.

A visually spectacular interpretation of Wagner's opera, staged by the Catalan theatre company La Fura dels Baus, in Valencia's Palau de les Arts. Zubin Mehta conducts the Orquesta de la Comunitat Valenciana, with performances by Lance Ryan, Ralf Lukas, Franz-Josef Kapellmann and Matti Salminen.

The Catalan theatre company La Fura dels Baus's visually captivating interpretation of Wagner's opera, performed at Valencia's Palau de les Arts in June 2009. Zubin Mehta conducts the Orquesta de la Comunitat Valenciana, with performances by Jennifer Wilson, Juha Uusitalo, Peter Seiffert and Matti Salminen.