King's Speech, Percy Grainger, Ai Wei Wei auction

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Before Colin Firth, Helena Bonham Carter and Geoffrey Rush were cast in the film version of the King's Speech - three actors Tim Wallers, Julia Marsen and Christopher Brand played the Duke of York, the Duchess of York and Lionel Logue at the read through of an earlier stage version (written between drafts of the screenplay). We hear from them about the read through. Ai Wei Wei's installation in Tate Modern comprises 100 million porcelain sunflower seeds. Tonight a pile weighing 100 kilograms is up for auction. How much will this smaller artwork make? Is the current vogue for 3D film a good thing ? Critics Chris Tookey and Ben Child discuss. The virtuoso Australian pianist and composer Percy Grainger died 50 years ago this month. Pianist Penelope Thwaites and composer Julian Anderson discuss his complicated private life and his prolific musical range. Producer Robyn Read.