The Last Jedi to add a touch of regal sparkle to proceedings, showing that the highest echelons of British society love a good space opera.
The Royals William and Harry surprised everyone as they joined Daisy Ridley and Mark Hamill, plus many of the film’s other stars including John Boyega, Laura Dern, Oscar Isaac Andy Serkis and C3PO’s voice, Antony Daniels, at the star-studded event.
And the princes were met by none other than the franchise’s adorable knee-high robot BB-8, who rolled up to them but did not curtsy.
Newly-engaged Harry did not bring Meghan Markle with him, and the Duchess of Cambridge Kate Middleton was also left at home.
They probably prefer Star Trek – though there’s plenty of girl power in the new movie, as the red carpet arrivals proved.
Daisy Ridley, who plays the film’s protagonist Rey, looked out of this galaxy as she wowed with a very space-age black number.
Wearing a long, vinyl, asymmetric black dress with choker detail, brunette film star Daisy giggled along with Mark as they chatted in front of the Royal Albert Hall.
Famous prankster Mark, 66, is returning for his first main role in a Star Wars movie in this installment, and has been tipped for an Oscar nomination.
Meanwhile this will be the last Star Wars movie featuring Carrie Fisher, aka Princess Leia, and the film ends with a moving tribute to “our princess”.
Elsewhere on the red carpet, the bulk of the cast arrived to celebrate their latest work, which has been met by great reviews already.
Flanked by Stormtroopers – as well as C3PO and R2D2 – Londoner John Boyega arrived in a velvet tuxe to celebrate his return as the character Finn.
The actor looked ecstatic to be there, after impressing in his first Star Wars effort The Force Awakens in 2015, which led to him landing lots of other major roles.
Things didn’t go very smoothly for one star arriving to enjoy his performance tonight, though.
Fans gathered at the security barrier spotted that the movie’s star Oscar Isaac, who plays Poe Dameron, was stopped by Royal Albert Hall security staff demanding to see his ticket as they didn’t recognise him.
Eventually he and his partner, director Elvira Lind, got through and hurried inside.