The Royals were given a guided tour of Pinewood Studios by Daisy Ridley, who first appeared as Rey in The Force Awakens.
It is not known if the brothers are fans of the films but both seemed very excited as they toured the creatures workshops, where they were shown the heads of characters from last year’s film and George Lucas’ originals.
R2D2 was also on display as was the BB8 droid from the Force Awakens and the head of Chewbacca.
William went up to the head of Han Solo’s best friend and joked about not being able to stop stroking it.
Harry went one step further later when he was given a huge hug by someone in the full Chewie costume.
The Force Awakens – the seventh instalment of the series – saw the return of original cast members Harrison Ford, Carrie Fisher and Mark Hamill and was the highest grossing film of all time in the UK.
Ahead of meeting the princes, Hamill tweeted: “Meeting #Royals William & Harry! Finally – a chance to get an informed answer on whether being Leia’s brother makes me a Prince. #LordLuke.”
William and Harry also met John Boyega who plays Fin.
Royals Meet Star Wars Creatures
The royal engagement is aimed at recognising the wealth of British creative talent involved in the production of the Star Wars films, Kensington Palace said.
The Duke is president of BAFTA.
Star Wars: Episode VIII is due to hit cinema screens in May 2017.
Benicio del Toro is among the new cast, along with Wild actress Laura Dern and relative newcomer Kelly Marie Tran.
All copyrights for this article are reserved to sky entertainment