STRICT EMBARGO TO 00:01 FRIDAY 15 APRIL 2011 © licensed to London News Pictures. LONDON, UK  12/04/11. HRH Prince Harry dances in the aisle. The filming of a new T-Mobile advert in which Kate Middleton and Prince William lookalikes pretend to get married at a mock royal wedding. The filming took place at St Bartholomew the Great Church in London. All the main royal family members and the Arch Bishop of Canterbury were played by actors. The actors danced down the aisle with moves choreographed by Louie Spence. Please see special instructions. Photo credit should read Cliff Hide/LNP.