Star Wars: The Last Jedi: BB-8 bowed to Prince William and Harry at the premiere

The droid clearly knows its royal protocol

Star Wars: The Last Jedi's London premiere was a feat of glittering stars and Hollywood magic.

Much of the film's cast were in attendance, including Mark Hamill, Daisy Ridley, John Boyega, Oscar Isaac, Adam Driver, Laura Dern, Kelly Marie Tran, Andy Serkis, and Benicio del Toro.

But there was an extra, royal surprise: Prince William and Harry, fans of the franchise, were also in attendance at the Royal Albert Hall event. Both had an opportunity to speak to the cast before the film commenced, but were first greeted by a very special ambassador.

Loveable droid BB-8 rolled onto the red carpet to say hello, making first sure to follow royal protocol and bow to both the princes.

Both Prince William and Harry had previously visited the Star Wars set at in Pinewood in April of last year, with Boyega confirming that the pair cameo in the film as Stormtroopers. Which ones? Well, that's where the detective work comes in.

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