We spotted Kate Middleton, her husband Prince William and Prince Harry visiting the Warner Bros. Studios in Leavesden, Hertfordshire, on Thursday.

The royal family was all smiles while sightseeing at the place where the "Harry Potter" movies were filmed. According to The Mirror, Kate and William learned how to cast spells with wands and then had a duel. The prince even cast an "expelliarmus" spell to disarm his wife. How cute!

The pregnant Duchess of Cambridge looked absolutely radiant in a white and black polka dot dress with a black jacket and matching pumps. Her baby bump was just barely visible under the loose, flowing dress.

The couple are expecting their new arrival in mid-July.

Meanwhile, the photographer who allegedly took topless photos of Middleton last year is facing criminal charges. The images were published in French magazine Closer in September.

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