Former Commissioner of Corrections, Georgia, USA - Allen Ault

Imagine you are a patient, about to undergo brain surgery. If it goes well it will save your life; if it goes wrong you could end up paralysed or dead. Of course you want to believe your surgeon is infallible, a superhero - but he is not; he is all too human just like you. That simple truth emerges from the extraordinarily honest writing of one of Britain's leading brain surgeons, Henry Marsh. He gives rare insight into the mind of the doctor - is it reassuring or troubling?

4 Tammi 201623min

For more than three decades the ballet dancer Sylvie Guillem has performed as principal dancer at most leading ballet establishments, redrawing the boundaries of the genre. But at the end of this year she will be giving her last performance in a worldwide farewell tour. She will undoubtedly go down in ballet history as one of the greatest dancers of all time - but she is famously been dubbed 'Mademoiselle Non' for being too assertive. Zeinab Badawi speaks to her about that as well as the poisonous rivalries in the world of ballet and her activism to save the planet.(Photo: Prima ballet dancer Sylvie Guillem of France delivers a speech at a press conference in Tokyo. Credit: TOSHIFUMI KITAMURA/AFP/Getty Images)

30 Joulu 201523min

Zeinab Badawi speaks to Nigel Owens, the Welshman who refereed the Rugby World Cup final and is one of the most respected professionals in the game. It has not been an easy journey to the top of the game for him - as a gay man in a macho sport, he has suffered depression and contemplated suicide. How has the world of rugby embraced him and what is making the sport so popular today?(Photo: Referee Nigel Owens. Credit: Matt Lewis - World Rugby/World Rugby via Getty Images)

28 Joulu 201523min

Stephen Sackur talks to Richard Leakey, the Chairman of the Kenya Wildlife Service. Africa's wildlife is one of the wonders of the natural world, but the fate of the continent's elephants, rhinos and big cats is now desperately uncertain - illegal poaching could see these great species disappear from their African heartlands. Will the fight for Africa's endangered wildlife have a happy ending?(Photo: Richard Leakey (L) gives a press conference organised by Wildlife Direct, in Nairobi, 2014. Credit: Tony Karumba/AFP)

25 Joulu 201523min

Colm Tóibín is an Irish writer whose intense, lyrical novels have won him awards, acclaim and most importantly millions of readers around the world. There are recurring themes in his work - loss, mourning, exile which might suggest a dark, brooding presence. Stephen Sackur asks how close that is to the real Colm Tóibín?(Photo: Colm Tóibín in the Hardtalk studio)

23 Joulu 201523min

Hardtalk’s guest is Hollywood actor Burt Reynolds. He turns 80 next year. Why does he say that although he’s made around 100 films he’s only proud of just a handful of them?(Photo: Actor Burt Reynolds accepts award during Spike TV's Guys Choice. Credit: Kevin Winter/Getty Images)

21 Joulu 201523min

Lord Turner, is a doyen of the UK economic establishment who has concluded that western economies remain dangerously reliant on debt. It might be reassuring if we could put the blame for the financial crash of 2008 on greedy bankers but what if the crisis was much deeper and more structural? Stephen Sackur asks Lord Turner if his solution; printing money to stimulate growth without adding to the debt pile, is credible?(Photo: Lord Turner in the Hardtalk studio)

18 Joulu 201523min

Tokyo Sexwale served thirteen years in jail on Robben Island with Nelson Mandela. As well as a career in politics he went into business and through interests in mining, gold and diamonds became one of the richest black South Africans. Now he is among five candidates vying to succeed FIFA president Sepp Blatter. Can he reinvent himself and win this top football post? Or could past controversies damage his chances?

16 Joulu 201523min