There's a lot of music here. Every time I here this opera, I hear a bit I've never heard before. Suffice it to say that with playing and singing like this, none of it outstays its welcome. There's nothing to object to in the staging - and nothing particularly exciting either. I've given this five stars mostly because I find Kaufmann and Harteros utterly superb. Of course they can sing the music, with wonderful phrasing and enormous subtlety of dynamics - but it's their acting that moved me. Very few opera singers survive the close up scrutiny of a film camera - and why should they have to indeed? Their final duet is heartbreaking. If you love this piece, then treat yourself. You won't regret it. Oh. The rest of the cast? All excellent - but not of the standard of Kaufmann and Harteros. They are simply in a class of their own.