Francine Stock talks to Maggie Gyllenhaal, the star of Secretary, about her new film Sherrybaby, an intimate and abrasive study of a drug addict and single mother. As Raging Bull is about to be re-released in cinemas, its director Martin Scorsese describes the making of a masterpiece. Roger Michell, the director of Notting Hill and The Mother talks about his most recent movie, Venus, which is now available on DVD.