Queen Of The World examines the head of state's role as a global figure and the baton she is passing on to younger members of the Royal Family, as they continue to strengthen ties with the family of nations.
Harry is now a Commonwealth Youth Ambassador and has already spoken about how his wife will join him in his work – which will see them begin a major Commonwealth tour in October.
Filmed over more than a year the documentary makers were given access to private home movies and the programme shows the role played by the Royal Yacht Britannia in the Queen's early tours of the Commonwealth.
Meghan Markle is reunited with the spectacular gown and veil she wore to walk down the aisle in a touching scene from a new documentary - four months after the royal wedding was watched by millions around the globe.
The Duchess' face lights up as she gazes at her veil in a fleeting scene from the trailer for Queen of the World, a two-part ITV show exploring the Queen's role as head of the Commonwealth Click link for full post from The Daily Mail.