With just under a month to go until the release of first Star Wars prequel Rogue One, a new international trailer has dropped showing featuring more Darth Vader than we've yet seen.

The film from Gareth Edwards (Godzilla) - which takes place ahead of original Star Wars film A New Hope - will centre largely around Felicity Jones' Jyn Erso, a criminal misfit who becomes entangled in the Rebellion's dangerous schemes.

Rounding out the cast are Donnie Yen, Diego Luna, Forest Whitaker, Riz Ahmed and Ben Mendelsohn who is known to share screen time with Vader as the villainous Krennick.

Rogue One final trailer: A shot-by-shot breakdown Show all 7 1 /7 Rogue One final trailer: A shot-by-shot breakdown Rogue One final trailer: A shot-by-shot breakdown Finally, Mads Mikkelsen's Galen Erso has turned up in a trailer; confirming previous hints that he'd be somehow responsible for the Death Star's construction. However, this new trailer reveals why daughter Jyn Erso (Felicity Jones) has become such a rebellious misfit; with Galen having been seized by the Empire when she was a young girl. Rogue One final trailer: A shot-by-shot breakdown Which, in turn, illuminates us as to why the Rebellion is so interested in Jyn in the first place; revealing that it's the Empire itself that first arrests her in the film, only to be freed by rebel Captain Cassian Andor (Diego Luna). Rogue One final trailer: A shot-by-shot breakdown This final trailer takes a surprising focus on Galen, who many previously thought would only appear in a minor role. It's interesting to see him here in some kind of Empire garb, which presumes that he may not be an entirely unwillingly prisoner in this situation. Is there a chance Jyn will recover her father, only to discover he's turned to the Dark side? There's definitely a sense in these trailers that Jyn will face some kind of moral struggle in her journey. Rogue One final trailer: A shot-by-shot breakdown "They are requesting a call sign." "It's, um, Rogue. Rogue One." OH, THAT'S WHY THEY CALL IT THAT. Rogue One final trailer: A shot-by-shot breakdown We've already seen Jyn in her TIE fighter pilot uniform, but this shot at least gives us a better idea of how she got to wearing it. "They've no idea we're coming," Jyn says; as she, Cassian, and K-2SO (an ex-Imperial droid reprogrammed by Cassian) infiltrate enemy territory. Rogue One final trailer: A shot-by-shot breakdown Looks like we'll be getting another big space battle. The question is - will this be the film's big finale action sequence? And is this the Death Star under construction? Obviously, we know the Death Star isn't entirely destroyed in the film; but this could somehow connect to the shot from the previous trailer of Jyn coming face-to-face with a TIE fighter. Rogue One final trailer: A shot-by-shot breakdown And, here's some more Darth Vader; now in epic striding mode. Looks like he'll be doing a lot of plotting with Ben Mendelsohn's Orson Krennic.

Eagle-eyed fans have spotted something in the trailer that may signal what the film's big revelation could be.

The moment arrives in a clip showing a young Jyn talking to her mother (Valene Kane) who places a crystal around her neck. "Trust the Force,' she says. Star Wars enthusiasts believe this moment to be extremely consequential, theorising that the crystal bears a huge importance on the franchise's future events (as see in Episodes IV, V, VI and VII).

Why? Because they believe it to be a Kyber crystal, an object used to make lightsabers as well as the thing that makes the Death Star operational.

Rogue One: A Star Wars Story - Trailer 3

This revelation would make Jyn a far more important character than just the portagonist of this prequel.