The cast of new movie Rogue One: A Star Wars Story are preparing for its premiere in just a few days - the film is one of this year's biggest releases and millions of fans across the world are counting down the days.
The Theory of Everything actress Felicity Jones plays the lead Jyn Erso - on her role she says: "It is very similar to The Empire Strikes Back, there's a quest at the heart of it and it's very much rooted in a father/daughter relationship which is the thrust of the story.
"It also has moments of lightness, fun and humour."
Rogue One tells the story of Jyn and a group of rebel fighters who set out to steal the plans to the Death Star.
Only one of the characters from the original Star Wars trilogy has so far been confirmed to feature in this spin-off- Darth Vader. But there are rumours Princess Leia will also be in it.
Riz Ahmed - who plays rebel Bodhi Rook - admitted he signed on to do the film without even reading the script because he wanted to be a part of the Star Wars stories.
Rogue One is the first of five Star Wars spin-off movies Disney has in the pipeline.
On keeping the film's plot under-wraps director Gareth Edwards said: "It's like a sport and Star Wars is the World Cup or the Superbowl.
"You wouldn't want to know all the final scores and what times the goals happen before watching the game. And it's like that with this I just want to let the fans and audience go. . . I am very excited about it."
Rogue One: A Star Wars Story will be released in cinemas on December 15.