Prince William, the Duke of Cambridge, and younger brother Prince Harry visited the set of "Star Wars: Episode VIII" at the Pinewood Studios here.
They received a tour by actress Daisy Ridley and got a chance to meet Mark Hamill, who plays Luke Skywalker, as well as director Rian Johnson, on Tuesday, reports eonline.com.
The brothers also took part in a lightsaber battle and got a sneak preview of the film.
Kensington Palace announced Tuesday's visit yesterday on Twitter, and explained that the princes would be celebrating Star Wars' "fantastic British creative talent".
"Star Wars: Episode VIII" will be released in 2017.