【Gary Eberhart Archives】

At least no one's going to accuse Diego Luna of being a little short for a Stormtrooper.

Luna -- who at 5'10" is Gary Eberhart Archivesonly an inch taller than Mark Hamill -- plays Rebel scum Cassian Andor in Rogue One. And as any Star Wars character doing all this sneakin' around knows, the time will come to go incognito.

SEE ALSO: 'Rogue One' revelations: Everything we just learned about the new Star Wars movie

See Luna talk about his journey to Rogue One-- as well as more than a few behind-the-scenes shots -- in this featurette shared exclusively with Mashable.

And as far as new footage goes, watch carefully for that moment when Cassian casually strolls through an Imperial stronghold wearing an officer's uniform:

It isn't quitethe first time we've seen Luna in the cavalry-style twill wool jacket and cap worn by ranking officers of the Empire. That came the last round of trailers, as we see airlock doors closing on Cassian, Jyn and K-2SO (a former Imperial security droid that Cassian reprogrammed to help the Rebel Alliance).

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But that was only a glimpse ...

Original image has been replaced. Credit: Mashable

Whereas this latest featurette gives us a longer look at Cassian walking through the bowels of what must surely be the Death Star, his trusty droid -- who needs no disguise, obviously -- in tow.

Original image has been replaced. Credit: Mashable

That droid, by the way, is played (voice and mo-cap) by Alan Tudyk -- who also makes a pretty priceless cameo here.

How's life on the Rogue Oneset treating you, Alan?

Original image has been replaced. Credit: Mashable

The Captain says it looks like life is good.

Rogue Oneis in theaters worldwide on December 16.

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