What kind of access have you got to Blair's inner-sanctum for this series?
I and the team have spent more than a year establishing what has really gone on inside Downing Street over the past decade - interviewing a large number of the key actors, including many Cabinet Ministers, Tony Blair's closest aides inside Number 10, senior civil servants and generals as well as crucial players from abroad.

All of our witnesses are people who have had a ringside view at the critical moments when the big decisions were being made. They can tell you what really happened because they were really there. Some of our most significant and revelatory witnesses have never before appeared on camera.

Was it difficult to get them to speak out?
If I found one thing surprising about the making of this series, it was surprise that people very close to him were prepared to talk with such remarkable candour about Tony Blair - we get a very penetrating and often surprising perspective on what he has got right and where he went wrong over these ten years. My only frustration is what we had to leave out. The series is three hours, but that still meant battles over who had to be edited because we just couldn't include everything we'd got. That was the cause of the most heated arguments within the team.

Do you think you've uncovered a new perspective on Blair's rule?
I believe people are going to find this a hugely revelatory series about the man who has governed - and, in many ways, defined - Britain for a decade. I hope they will find it entertaining as well.

Foreign policy has dominated his Premiership, hasn't it?
Tony Blair has not turned out to be the Prime Minister he expected to be-- and he has not been the Prime Minister who many of those who supported him expected him to be. He thought he'd be a peacetime premier. He thought domestic reform would be his main priority. He ended up sending British forces into more war-zones than any other Prime Minister since 1945. His biggest foreign policy ambition when he arrived in Downing Street was to settle Britain's relations with Europe. He failed to get Britain into the euro- and the series explains why. He has ended up being most searingly defined by his relationship with the United States and the war in Iraq.