"We found every Dalek in existence and brought them all to Cardiff Bay".
Actor Matt Smith, writer Steven Moffat and other cast and crew members behind the latest Doctor Who adventure, Asylum of the Daleks, are interviewed at BFI Southbank by broadcaster Richard Bacon.
Does Moffat prefer working on Doctor Who or Sherlock? Has Smith agreed to continue playing the Doctor until 2014? And which famous actor will play a villain in the next instalment?