Confidential hangs out with the stars in the 'Tent of Fun' and takes a look at how filming with doppelgangers can mean double the trouble. We discover whether playing The Doctor has given Matt Smith an insight into another world, while writer Matthew Graham takes a journey of discovery and sees one of his most powerful new characters coming to life. Featuring interviews with Matt Smith, Karen Gillan, Arthur Darvill and Sarah Smart. (thetvdb.com)