"With the Duke and Duchess of Sussex about to embark on their first Commonwealth Tour to Australia, New Zealand and the Pacific exactly 65 years after the Queen's first Commonwealth Tour, this series could not be more timely".
At another point in the trailer, Harry is seen joking with visitors at Buckingham Palace not to be scared if they bump into the Queen in the corridor as she still scares him, too.
It's Meghan's first appearance in an official documentary as a member of the royal family.
It's believed Meghan will be discussing her wedding dress at length when the documentary airs on next Tuesday September 25 on ITV.
"Have you bumped into the Queen yet?" he asked.
She also donned a five-meter veil that featured floral designs representing each of the 53 Commonwealth Countries.
The source told "Entertainment Tonight": "She really is taking the new job part of her role seriously having meetings with Palace staff and learning about the Commonwealth so she can support Harry in his new role as Commonwealth Youth Ambassador". I know you will.
"Fifty-three countries, oh my goodness", the 37-year-old says in the clip above.
French court orders Le Pen to undergo psychiatric tests over Daesh tweets
Italy's Interior Minister Matteo Salvini said in a statement: "A court orders a psychiatric assessment for Marine Le Pen". She concluded the Tweet with her initials, shorthand to signify that she wrote the message, not a staff member.