“FW Murnau’s work is, at first glance, the most varied, even inconsistent, of the great German cineastes.” Those are the opening words of film critic David Cairns's What Will You Be Tomorrow? an extra conceived for Early Murnau: Five Films, 1921-1925, a new three-disc Blu-ray box set of the director’s early films. After watching them, it’s clear that what might seem a contentious statement is spot on.

You know what they say about men with big hands. Christian Thielemann has them, that’s for sure. Massive, meat-cleaving clappers, carving through the air. They give a pretty heavy upbeat too, and a generalissimo’s point and jab for a cue. If you’re a back-desk violinist in the Dresden Staatskapelle, you know when you’ve been Thielemanned.

Soft power in the shape of cultural ambassadors can go a long way. With a little help from its big guns in banking and industry, Germany has given this year's Proms no less than four of its major orchestras – from Leipzig, two from Berlin, and now from Dresden: all the more reason to wave those EU flags on a typically international Last Night in three days' time.

Enter the human - and superhuman demands for at least four of the singers - in the second, towering instalment of Wagner's Ring cycle. It says so much for Opera North's achievement so far that no one fell in any way short of the sometimes insane vocal demands. There were only varying degrees of characterisation and commitment, none of them less than fine.

They promised Wagner for everybody at the Southbank Centre, and so far they're delivering. Community events cluster around a livescreening of each Ring instalment in the Clore Ballroom. We privileged few in the Festival Hall wondered how newcomers might be reacting out there, but there was no interval in the two-and-three-quarter-hour Das Rheingold to go and test the waters.

All 23 of Massenet's mature operas boast memorably melodious quarters of an hour and fastidious orchestration, so why Werther’s special status as a repertoire staple? Three or four great arias may have been enough to clinch it. There’s also the fact that the source, Goethe's The Sorrows of Young Werther, confers a highbrow status the opera, a pale shadow of the original, doesn't really deserve. At any rate it came over last night as no more than an after-dinner mint to a dark day's dining on scorpions.

An old subversive Soviet joke has Karl Marx coming back from hell, facing enormous crowds of very unhappy people and telling them, "Oh I'm so sorry – it was only an idea." But what an idea and ideas, as Bettany Hughes's film reminded us. 

Wagner was never satisfied with Tannhäuser, and it’s not hard to see why. Essentially a study of the tension between sensual and spiritual love, it was composed at a time when, by his own later confession, he lacked the resources to deal properly (that is, improperly) with the sensual element, and even in any profundity – one might feel – with the spiritual. The piece went through numerous revisions, extensions, compressions, tinkerings of one sort or another.

Watching Victoria on home video is a good idea if you first hide the remote. It’s impossible to pause Sebastian Schipper’s ambitious heist thriller even for a few seconds without ruining its pleasurably disorienting effect: cinematographer Sturla Brandth Grøvlen shot it – digitally, of course – in real time in a single 138-minute take on 22 Berlin locations. It's unsurprising to learn that Schipper acted in Tom Tykwer’s kinetic Run Lola Run (1998) and has written with him.

Suzy Klein, writer and presenter of this three-episode series, is a trained musician and a ubiquitous presence in cultural programmes across a wide spectrum. This opening film, "We Can Be Heroes", was an engagingly populist piece about a complicated subject as she enthusiastically described a major cultural shift in the way musicians and composers engaged with patrons and audiences across Europe.