One of the more interesting locations in "Rogue One: A Star Wars Story" is the holy Jedi city of Jedha. Now, director Gareth Edwards has peeled back the curtain on an Easter egg, revealing that the city is the home of the legendary Kyber crystals, which are used to make a Jedi's lightsaber and power the Empire's Deathstar.

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"If you look at the establishing shot of Jedha from above, the layout of it is this giant, circular rock formation around where Jedha is — the idea was that there was a meteor impact that hit Jedha and it came at such a force that it was what created the Kyber Crystals at the center of that crate of impact," Edwards told Collider. "So Jedha is like this very unique place in the galaxy in that it’s got a very high density of Kyber Crystals, which is what the Jedi need for lightsabers. So it became this holy city as a result of that meteor impact. But that must’ve happened maybe millions of years ago. We tried to tell that story in the establishing shot, you see the circular formation and at the heart of it is Jedha city."

Set just prior to the events of 1977’s “Star Wars,” “Rogue One” follows a ragtag group of Rebels who undertake the dangerous mission to steal the design plans for the Galactic Empire’s planet-destroying new superweapon, the Death Star.

Directed by Gareth Edwards, “Rogue One: A Star Wars Story” stars Felicity Jones, Diego Luna, Ben Mendelsohn, Donnie Yen, Mads Mikkelsen, Alan Tudyk, Riz Ahmed, Jiang Wen and Forest Whitaker. “Rogue One: A Star Wars Story” is available for digital download, while the Blu-ray and DVD combo pack will be available April 4.