Sadler’s Wells East sparks a dance revolution

The two figures on the stage at Sadler’s Wells’ new outpost in east London cut very different silhouettes. The artistic director and co-chief executive, Sir Alistair Spalding, channels boardroom casual in an open-collar blue shirt, dark cotton trousers and brown Oxford shoes; the dancer and choreographer Jules Cunningham wears Dr Martens boots and drainpipe trousers, hair clipped short at the sides and top, long at the back. One stands slightly stiffly, hands in pockets; the other –…