19-23 June; also Wales Millennium Centre, 26-30 June; Royal Naval College, Greenwich, 4-8 July Dance GB, an Olympics dance celebrat ion which unites the nations, English National Ballet, Scottish Ballet an d National Dance Company Wales. Each company commissioning contemporary ch oreographers: for Scottish Ballet, Martin Lawrance, for National Dance Co mpany Wales, Christopher Bruce, and for English National Ballet, Itzik G alili info: http://www.ballet.org.uk