Terry Pratchett assisted suicide documentary Choosing to Die wins Grierson British Documentary Award Fellow Scot Kevin Macdonald, known for films One Day in September, Touching the Void, Marley, and the Oscar-winning The Last King of Scotland, was awarded the Grierson's Trustees award. Charlotte Moore, BBC Commissioning Editor of Documentaries said he had made "an outstanding contribution to the art and craft of the British documentary." Other winners included a Culture Show special on artist Jeremy Deller, Channel 4 school programme Educating Essex came highly commended but the BBC's Protecting Our Children, about adoption, won the Best Documentary category, while the BBC's natural history show Frozen Planet lost out to After Life: The Strange Science of Decay in the science strand. A highlights show of the awards will air on Sky Arts 2 on Monday 12 November at 8.00pm Full winners were: Clockwork Capital Most Entertaining Documentary The Bengali Detective Phil Cox for Native Voice Films; first shown: Cambridge Film Festival Deluxe 142 Best Documentary on a Contemporary Theme - Domestic Terry Pratchett: Choosing to Die Charlie Russell for Keo North; first shown: BBC Two Vimeo Best Science Documentary After Life: The Strange Science of Decay Fred Hepburn, Dani Carlaw for BBC Scotland; first shown: BBC Four CTVC Best Newcomer Documentary Gypsy Blood Leo Maguire for ClearStory; first shown: Channel 4 DocHouse and The Bertha Foundation Best Cinema Documentary Bobby Fischer Against the World Liz Garbus for Moxie Firecracker Films; first shown: General theatrical release ITN Source Best Historical Documentary The Love of Books: A Sarajevo Story Sam Hobkinson for Oxford Film and Television; first shown: BBC Four Sky Arts Best Student Documentary The Betrayal Karen Winther for National Film & Television School; first shown: BFI Southbank, London The Open University Best Arts Documentary Culture Show: Jeremy Deller - Middle Class Hero Jack Cocker for BBC Scotland; first shown: BBC Two Shell Best Documentary on a Contemporary Theme - International Hell and Back Again Danfung Dennis for Roast Beef Productions; first shown: More 4 Envy Best Documentary Series Protecting Our Children Sacha Mirzoeff, Emma Burman for BBC Productions; first shown: BBC Two