London: Prince Harry has revealed he still "panics" when he bumps into the Queen walking along the corridors of Buckingham Palace, despite being her grandson.

Speaking in a new documentary that explores behind-the-scenes moments of the Royal family, the Duke of Sussex recounts to visitors that he still gets nervous when he sees the Queen coming.

Addressing a group of hospitality professionals from the Caribbean, who are spending time at the palace as part of a new scheme headed up by the Queen, the newlywed Duke offers some words of encouragement.

"You guys have spent way more time in Buckingham Palace than I ever have - and you've only been here two weeks," he says. "Have you bumped into the Queen yet? If you suddenly bump into her in the corridor, don't panic. I know you will. We all do!"

The two part ITV series, Queen of the World, also gains exclusive access to a collection of private home films to show the Queen's role as head of the Commonwealth.

Claudine Jeffrey is one of the group visiting from Antigua to work in Buckingham Palace. Speaking in the film she says: "It's a fun place to work. I say it's an adventure every day because every day it is always something different. You never find that you are doing the same thing so that's really amazing."