The Duke and Duchess of Cambridge and Prince Harry have met Harry Potter author J K Rowling while touring the Warner Brothers Studios in Leavesden where the films were recorded.
The royals arrived at the £100 million studios – where all eight Harry Potter films were made – at around 10.30am.
Kate, 31, was wearing a black tailored Ralph Lauren jacket with her baby bump clearly showing under a £38 polka dot Topshop dress while William and Harry both wore dark suits.
Kate dressed in a Topshop dress with her baby bump clearly showing.
On the tour the future King and Queen met Harry Potter author J K Rowling.
There they also were met by local dignitaries including Herts police chief Andy Bliss, Watford Mayor Dorothy Thornhill, Three Rivers Chairman Kemal Butt and Hertfordshire County Council Leader Robert Gordon.
At the start of the tour they were given a talk about the history of the studios before looking at props from The Dark Knight Rises film.
At one point William got into the Bat-Pod – a motorcycle-style film used by Batman in the film – and asked where the start button was.
Harry looks on in amusement as William climbs into the Batman Tumbler.
Harry and Wills – both helicopter pilots and presumably familiar with specialised military vehicles – shared a joke as they climbed into a Tumbler and Will revved the engine.
To mark the official opening, William, 30 will deliver a short speech before joining Kate and Harry in hosting a meeting for their Charities Forum, which took place in Hogwarts’ Great Hall- the original set from the Potter movies.
Harry Potter seems to be a fond favourite of the monarchy, as in January the Prince of Wales and Duchess of Cornwall visited King's Cross station to see platform 9 3/4 where the young wizard catches his train to Hogwarts School.
The studios, which opened for business in June last year, is the first of its kind to be built in the UK in 70 years and is the only film studio in the country to be owned and operated by a major Hollywood film studio.
The Making of Harry Potter tour opened in March 2012 and since then, the Great Hall doors have opened more than 14,000 times with each group of visitors greeted with the words “Welcome to Hogwarts.”
It welcomed its millionth visitor in early December 2012- a nine-year-old boy from the appropriately named town of Dudley.
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