The combination of Romeo, Juliet and the choreographer Alexei Ratmansky should be almost too much for the blood pressure. Those defiant lovers, that emotive yet intellectual young Russian craftsman of ballet. Hence the huge turn-out of balletomanes for National Ballet of Canada at Sadler’s Wells last night.

Snow flurries outside, steam heat within. Writer-director Yael Farber’s transposition of Strindberg from a 19th-century Swedish estate to a contemporary farm in South Africa’s Karoo region on the eve of a storm is so painstakingly evocative that all worries about the latest publicity image – shades of blaxploitation, more Mandingo than Miss Julie – instantly evaporate.

The Globe to Globe season has enjoyed tremendous goodwill from audiences and critics alike. And this has been largely repaid, for it’s been a joy and a wonder to learn just how much contemporary relevance can be mined and brought into sharp relief, and with such audacious wit, when stripped of the plays’ native tongue. So one wishes one could keep up the momentum of goodwill for every production.

Better late than never. It took till Act 3 for a new Juliet to fledge her wings and shed the nervous caution, but Melissa Hamilton, debuting yesterday afternoon in probably the Royal Ballet’s most coveted ballerina role, suddenly did what we all knew she could, and after a subdued first act seized the drama and the story. And, in Romeo’s phrase, light broke - the sun in the east. A fair new Juliet.

Fokine, the founding choreographer of the Ballets Russes, wrote on Anna Pavlova’s death, “Pavlova will be the dream of many generations, a dream of beauty, of the gladness of movement.” The superb array of international stars of ballet last night showing up at the Coliseum to honour Pavlova a century later had to set you thinking, all over again, about why this particular ballerina remains worldwide the epitome of what people imagine about the ballet.

It's one of the fundamental rules of concert-going that in any given season there will be one piece that trips you up. And that piece will always be by Berlioz. No matter what new alchemical concoctions Boulez, Lachenmann, Ferneyhough or Rihm will throw at you, someone will programme something by the 19th-century French composer - usually something with a perfectly benign-sounding title like King Lear Overture or Roméo et Juliette - that will in fact sound more modern, more outlandish, more baffling than anything written before or since.

How far would you go, if you were utterly in love? Till death you do part? Kenneth MacMillan’s 1965 ballet Romeo and Juliet remains a magnet for audiences and for performers all playing that ritual game with their own feelings. Marianela Nuñez and Thiago Soares are a married couple, and brought to their single performance (unaccountably) in this new run of Covent Garden’s timeless attraction an infusion of pounding blood and sensual compatibility.

Like planets crossing in the skies, light years apart, but by some ocular illusion coinciding, this conjunction of the two most thrilling young Bolshoi stars in the world and Frederick Ashton’s rarely staged Romeo and Juliet really must be seen. Natalia Osipova and Ivan Vasiliev are real-life lovers as well as phenomenal work colleagues and passionate actors. The freshness of youth, the unhindered outpouring of emotion, the finish of their dancing, and their direct stage personalities enrich to bursting a chamber-sized telling of the tragedy that's refreshingly intimate by comparison with the more popular blockbuster versions.

“What I love about her is her emotion, her true emotion. She’s a ball of energy and emotion all together, quite an amazing thing. From the first time I saw her, I thought I want her to be my girlfriend.” Ivan Vasiliev, the young Bolshoi Ballet superstar, is talking about his girlfriend - though he could also be Romeo talking about Juliet.

Last weekend ballerina Tamara Rojo performed to the largest live audience ever to watch the Royal Ballet, at London's O2 Arena. But what was it like facing 12,000 people, and trying with her partner, the Cuban star Carlos Acosta, to tell the intimate story of two young lovers in Kenneth MacMillan's Romeo and Juliet? She tells us it's a weirdly out-of-touch experience on that vast stage, almost like being in private. And thank goodness for the cameras.