TALK: A paparazzi photographer, an artist and a host of well-known figures from the celebrity, literary and arts arenas will be coming face-to-face to debate the nature of 'modern celebrity'. Alison Jackson, the BAFTA-winning artist behind the current Schweppes advertising campaign featuring look-alikes of well-known celebrities, willhost the debate. She will be joined by prominent guests to debate theirattitudes and ideas on the theme of 'Celebrity Uncovered'. The Barbican Centre, Cinema 3, on Thursday August 1st from 6.30pm to 9.00pm and is open to members of the public (call 0207 291 3036 to reserve a place).