AceShowbiz -

Prince William and Prince Harry visited the set of the upcoming "Star Wars Episode VIII" at Pinewood Studios in London on Tuesday, April 19. During the set tour, the sons of Prince Charles and Princess Diana had a duel with lightsabers.

William and Harry were led by Daisy Ridley around the set. In some photos shared on Twitter by Kensington Palace, they stopped by a number of production workshops, and met the creative teams behind the film, as well as director Rian Johnson, Mark Hamill, John Boyega and even Chewbacca and BB8.

In one photo, William looked surprised when holding Rey's head cast. Another photo showed Harry hugging Chewbacca while his brother trying to talk with BB8. Harry even received some piloting advice from Mark.

The Duke and Prince Harry come face to face with Daisy Ridley's @starwars head cast @PinewoodStudios pic.twitter.com/vrXHdQR2AO

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Time for a lightsaber battle! @starwars @PinewoodStudios pic.twitter.com/9hHxPxfTti

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Next up: a visit to the @starwars costume department @PinewoodStudios pic.twitter.com/18y76YLFxK

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Prince Harry has made a new friend... pic.twitter.com/mTra1UoSMx

— Kensington Palace (@KensingtonRoyal) April 19, 2016

...and so has The Duke! pic.twitter.com/c9gOh4ACyA

— Kensington Palace (@KensingtonRoyal) April 19, 2016

The Duke meets Luke Skywalker @HamillHimself and @starwars director @rianjohnson pic.twitter.com/XDizZ6GR2y

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Prince Harry, Chewbacca and @JohnBoyega compare outfits @PinewoodStudios pic.twitter.com/vtmc4f1GXX

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Prince Harry receives some piloting advice from @HamillHimself pic.twitter.com/MKRO31ki2l

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Don't forget BB-8 - The Duke and Prince Harry say hi to the @starwars cast!https://t.co/9ibP96L2vS

— Kensington Palace (@KensingtonRoyal) April 19, 2016

Thank you @starwars for a fantastic day @PinewoodStudios! pic.twitter.com/cGUuFqh0qV

— Kensington Palace (@KensingtonRoyal) April 19, 2016

"Star Wars Episode VIII" is set to hit U.S. theaters on December 15, 2017.