The 50th edition of the international arts exhibition opens in Venice on 15 June with the theme "Dreams and conflicts the viewer's dictatorship" directed by Francesco Bonami. This year the biennale is bigger than ever, with shows not just in the Giardini del Castello and Arsenale but also in churches and other spaces throughout the city. Britain will be represented by Turner Prize-winning artist Chris Ofili with a show of new work in the British Pavilion in the Castello gardens. For the first time Scotland and Wales will be represented by independent shows: Claire Barclay, Jim Lambie and Simon Starling for Scotland at Palazzo Giustinian-Lolin; and Paul Seawright, Cerith Wyn Evans, Simon Pope and Bethan Huws for Wales at the ex-birreria, Giudecca island. Until 2 Nov. 10.00-18.00, Mon closed. For information see www.labiennale.org.