A new trailer for “Rogue One: A Star Wars Story” premiered during the Olympics broadcast Thursday night, suggesting that this stand-alone movie will be as elaborate and lavish as the main films in the franchise.

The only previous spinoff movie from the “Star Wars” series was “Star Wars: The Clone Wars” (2008), an animated film made for a slim $8.5 million. Critics called it cheap and chintzy, though that clearly won’t be the case with “Rogue One.”

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The new trailer picks up where an April teaser left off: Our heroine, Jyn (Felicity Jones), is a loose cannon willing to join the Rebel Alliance. Apparently, they could use the help. As a gray-bearded sage named Saw Gerrera (Forest Whitaker) says, “The world is coming undone. Imperial flags reign across the galaxy.”

Jyn’s mission seems to be stealing the plans to the Empire’s Death Star. Might these be the same plans obtained by “Rebel spies” that Princess Leia (Carrie Fisher) tucked into R2D2 at the beginning of the 1977 movie? That’s not mentioned, although the trailer contains many nods to the original universe, including AT-AT Walkers, TIE Fighters and, of course, a hissing Darth Vader lurking in shadow.