Kate Middleton takes part in final rehearsal at Westminster

With less than 24 hours to go before the royal wedding, Kate Middleton took part in a final rehearsal at Westminster Abbey.

The official order of service was published Thursday morning along with a previously unseen black and white photo of the couple, shot by famed photographer, Mario Testino.

The couple said they have been 'deeply moved' by the affection they have been shown since their engagement.

Nicholas Witchell reports.