Who’s there? Behind the scenes of Day of the Doctor

He's spent nearly a millennium travelling light years from home, but now The Doctor has reached a special milestone - half a century on our TV screens.

Our Entertainment Correspondent Lizo Mzimba has taken a look behind the scenes of the eagerly anticipated Day of the Doctor talking with John Hurt, David Tennant and Matt Smith.

Day of the Doctor is on BBC One and in 3D at selected cinemas on Saturday at 7.50pm.