Verity Sharp talks to Goldfrapp about their new album. We staged and filmed a series of flash mob dance events in Liverpool to celebrate its year as capital of culture: including a shopping-mall waltz, hip hop street sweepers and commuter dancing in the station. Mark Kermode meets Garth Jennings and Nick Goldsmith, who made movie Son of Rambow. Tim Samuels goes to the world's biggest music industry festival. With music from Roisin Murphy and the Cave Singers.