Exhibitions about fashion tend to divide the public. Those passionately interested in fashion go to them; everybody else doesn’t. There’s a prevailing view that we already hear enough about top models, superstar designers and their attendant dramas through the media, the high street and the imposition of having to go and buy the stuff, without extending the experience into the art gallery.

Two leading ballerinas retired this week on either side of the Atlantic, Darci Kistler of New York City Ballet and Miyako Yoshida of the Royal Ballet. Both are in their mid-forties (not old for a ballerina) and each is an exemplar of certain best qualities of their companies, yet each seems to have outstayed their welcome in some way.

Hollywood westerns and Japanese samurai movies have long been generic companions. Akira Kurosawa borrowed from the films of John Ford for his chambara (a term referring to period drama with swordfighting), while Hollywood borrowed back again by remaking The Seven Samurai as The Magnificent Seven, and Sergio Leone launched the spaghetti western subgenre by remaking Yojimbo as A Fistful of Dollars.

It is hard to think of anything more "foreign" than kabuki to the Anglo style of acting, a style which reveres naturalism and makes "reality" its ultimate aim. Yet kabuki is gaining a knowledgeable – and welcoming – audience in London. The Shochiku Kabuki Company was at the Barbican last year, performing in Yukio Ninagawa’s brilliant Twelfth Night, and Sadler’s Wells have become almost regular hosts of Japanese performers.

When I last met Nitin Sawhney, I’d heard that he was a whizz at mental arithmetic. I asked him, perhaps impertinently, what was 91 times 94? “8,827,” he relied, quick as a flash. Several hours later, I worked out he was probably right. “Vedic mathematics,” he said. What I can say about last night’s performance was there was some interesting mathematics going on. Some time signatures rubbed friskily against others in certain scenes in ways a mathematician would love. The score had an enormous facility.

Tucked away down a sleepy residential back alley in suburban Tokyo, Studio Ghibli, the headquarters of Hayao Miyazaki, is designed - by the visionary animator himself - in the shape of a boat. When I visited it five years ago, just before the release of his last film, Howl's Moving Castle, the team of young animators all had bowls of fish and terrapins on their desks. The result, Ponyo, is at last about to open in Britain: Miyazaki is a famously slow worker, and the delay has been compounded by a hold-up with distribution. But this irresistible marine fairy-tale is worth the wait.

Original Cultures is an artistic collective with bases in the UK, Italy and Japan, dedicated to audiovisual collaborations inspired by street art, graffiti, hip hop and electronic music. It is staging its first London event over the course of a week from 27 February to 5 March this year, in which artists Ericailcane, DEM, Will Barras, Hiraki Sawa, Om Unit, Tatsuki and Tayone will be joining to create new works in a series of public events and workshops in and around the Old Truman Brewery, Brick Lane, London.