Lauren Laverne and Mark Kermode present an edition of The Culture Show which tonight includes classical music, land art in Scotland, Ricky Gervais's first feature film as director, plus a review of the week's biggest films and music from Elbow and Richard Hawley. Verity Sharp meets the 27-year-old Venezuelan conductor Gustavo Dudamel. Like his fellow members of the Simon Bolivar Youth Orchestra, Dudamel is the product of El Sistem - free musical education for some of the poorest young people in Venezuela. Plus, Andrew Graham-Dixon takes to the Scottish skies in a helicopter to look at beautiful and baffling land art; Karl Pilkington continues his American adventure on the set of Ricky Gervais's directorial debut This Side of the Truth; and Mark Kermode gives his view on the week's cinema releases including The Incredible Hulk starring Ed Norton, and The Happening directed by M Night Shyamalan.