 ITV's role in the production of the film allowed them an option for its television premiere and it was broadcast on 2 September 2007 (coinciding that weekend with a memorial service to Diana) to an average audience of 7.9 million, winning its timeslot.The DVD was released in the UK on 12 March 2007.Special features include a making-of featurette and an audio commentary by Stephen Frears, writer Peter Morgan and Robert Lacey, biographer of Queen Elizabeth II.