91Èȱ¬

The 91Èȱ¬ announced today that series six of Doctor Who will open with a spectacular two-parter set in the US and penned by "Who supremo" Steven Moffat.

In the special two-parter co-produced with 91Èȱ¬ America, key scenes will be filmed in Utah for a story set in the late Sixties in which the Doctor, Amy and Rory find themselves on a secret summons that takes them on an adventure from the desert in Utah right to the Oval Office itself.

Production on episodes one and two of the new series starts in Cardiff this month and Matt Smith, Karen Gillan and Arthur Darvill will then travel to America in mid-November to shoot pivotal scenes. They will also be joined by Alex Kingston who reprises her role as River Song.

Showrunner and lead writer, Steven Moffat, said: "The Doctor has visited every weird and wonderful planet you can imagine, so he was bound get round to America eventually! And of course every Doctor Who fan will be jumping up and down and saying he's been in America before. But not for real, not on location – and not with a story like this one! Oh, you wait!"

Piers Wenger, Head of Drama 91Èȱ¬ Wales and Executive Producer, added: "Steven's scripts generally inspire us to go that extra mile – this time we're going that extra four thousand. Thanks to our friends at 91Èȱ¬ America and to the continuing ambition of our lead writer and production team, the first two episodes of Matt Smith's second series as the Doctor are going global and look set to become Doctor Who's most action-packed and ambitious season opener yet."

The new series follows on from the Doctor Who Christmas Special guest starring Katherine Jenkins and Michael Gambon which is due to broadcast at Christmas. Series six will start airing on 91Èȱ¬ One in spring 2011 and has been split into two blocks, with the second block airing in autumn 2011.

By splitting the series Moffat plans to give viewers one of the most exciting Doctor Who cliffhangers and plot twists ever, leaving them waiting, on the edge of their seats, until the autumn to find out what happens.

The series was co-commissioned by Ben Stephenson, Controller, 91Èȱ¬ Drama Commissioning for 91Èȱ¬ One and Jay Hunt, Controller of 91Èȱ¬ One and will be produced by Marcus Wilson (Whitechapel) and Sanne Wohlenberg (Margaret). Steven Moffat is lead writer and executive producer with Piers Wenger, Head of Drama, 91Èȱ¬ Wales and Beth Willis (Ashes To Ashes), also executive producing.

Filming is taking place in Cardiff until March 2010.

KM3/PPR