Romeo and Juliet - review
O2 Arena, London"Ballet rocks!" is a phrase increasingly bandied about by enthusiastic dance fans. Ballet has indeed been bursting its opera-house laces, with high-profile appearances in a Kanye West video, in Black Swan ("ballet shocks!") and on the catwalk ("ballet frocks!"). The latest such outing is the Royal Ballet's Romeo and Juliet at the O2 Arena, a cavernous stadium that usually presents the biggest names in…