Rogue One: A Star Wars Story comes out this month! See a clip from the movie with Felicity Jones, Diego Luna and Alan Tudyk.

We’re stoked for a lot of things this December, including some fantastic sci-fi movies. Not only are Chris Pratt and Jennifer Lawrence gonna be on the big screen together for the first time in Passengers, but there’s a new Star Wars movie out!

This one goes back in time, to the dark period between Revenge of the Sith and the original Star Wars from 1977. The rebellion hasn’t found its new hope yet, but at least there’s a regular ol’ hope in the form of Jyn Erso.

Related: Felicity Jones gives rousing speech in new Rogue One: A Star Wars Story clip

Lead Rogue One actress Felicity Jones appears on Jimmy Fallon’s The Tonight Show to show off a new clip, and her awesome fighting skills.

See the full segment below, or skip to the end for the movie clip in which Jyn proves just how badass she really is:

As Jyn and her teammates are fighting off Stormtroopers, Diego Luna’s character Cassian Andor kind of stops and stares as he realizes she’s pretty much handling the fighting all by herself.

She gets so enthusiastic, she even shoots a droid — but luckily it’s not K-2SO (Alan Tudyk), who appears right behind it! Her evident relief betrays the fact that she really didn’t know she hadn’t just shot one of her teammates, so um… watch your backs, Rogue One crew?

Rogue One: A Star Wars Story‘ premieres December 16