Kody Nielsen is possibly best known outside his native New Zealand as the producer of singer-songwriter Bic Runga, but since her star shines very much brighter at home than in Europe, that isn’t necessarily an especially high profile. He has also long been front man of The Mint Chicks, self-proclaimed “trouble gum art punks”, but now they’ve split up he returns with a new outfit, Opossum, and an even newer bag of tricks.

So, what's the "problem"? All is right with the world - or the theatre at least - in the Maori-language staging of Troilus and Cressida from the Auckland-based Ngakau Toa troupe that pierces right to the troubling heart of this first of Shakespeare's three so-called "problem plays".

You hear the names of the princes and romantic heroines in ballet, but the global success of 20th-century British ballet had much to do with its dramatic acuity and nuancing, the unexpected side characters who in the ballets of Ashton and MacMillan were vastly more interesting than the stock supporting roles of 19th-century ballet. Alexander Grant was the key man in the growth of sophistication in British ballet in the Forties and Fifties, a character performer of powerful personality, and a performer who could out-dance almost any leading man.

All ballet companies dream of finding a genuine creative talent among their ranks, and the Royal New Zealand Ballet, visiting from the farthest end of the world ballet map, have one in Andrew Simmons. The unknown name on their triple bill on this rare visit to London shows a young mind drawn naturally to grace and understated expressiveness.

The mistake was probably that I hadn’t tanked up beforehand. Clues were there. Soho Theatre is over a pub. 9.45pm start. Who’s going to turn up in those circumstances completely sober? Who would be mad enough to turn up in Soho at 9.45pm stone-cold sober? And a four-star Edinburgh Fringe show had not necessarily been assessed by altogether un-punchdrunk viewers, lurching as they do (and I have done) between five shows a night.

I always liked that line in the 1960 Spartacus movie when Spartacus's lover Varinia (Jean Simmons) is bidding a silent farewell to the crucified rebel gladiator. "Tell da lady no loidering," growls the Roman sentry standing guard nearby. I can't tell you whether the line will appear in this new and lurid rehash of the Spartacus legend, though if it does it won't have quite the same Bronx ambience about it since most of the accents are from the Antipodes, the series having been shot in New Zealand.

When the moment finally arrives for the Great Rock Reckoning, it’s hard to say where Crowded House will figure. There was a time, around 1993, when they looked like heirs apparent to U2 and R.E.M., ready to make the step-change up to the out-of-town sheds and the weekend fan-boys. They broke up rather than have to grasp that particular nettle, and the moment duly passed.

Jonathan Mills has announced the programme for Edinburgh International Festival 2010, on a theme of modern culture in the New Worlds of the Americas and Australasia. Ranging from California to Canberra, New York to New Zealand, from Santiago to Samoa, the festival opens on Friday 13 August with John Adams' oratorio El Niño and closes on Sunday 5 September with the traditional fireworks concert.