Premiered in 1965 at the Royal Ballet, with Margot Fonteyn and Rudolf Nureyev as the star-crossed lovers, Kenneth MacMillan’s Romeo and Juliet has stood the test of time. The brooding glamour of the Capulets. The ecstatic balcony scene. Renaissance elegance overmatched by swaggering machismo. Love-death in the tomb. Sir Kenneth was never better. —L.J.