Transcript for One-on-one with J.J. Abrams, director of 'The Rise of Skywalker'

I'm Pollack Ferris for ABC news live in Chicago where we just when JJ Abrams director for the rise of skywalker he talked about. The challenges of keeping this movie under wraps the code name and he also revealed an unexpected twist when it comes to race parents. You saw the trailer for the first time they've learned the title. The rise of skywalker. Had come up with that title. We'll let everything it was a long debate a lot of conversation about it felt like I'm moving no one has ever really gone. If the and per the only one. That returned the story is about this young and no new generation of characters and sort of being up against him we've inherited. I think that is certainly true whether it's you know little figures the idea that you know whoever has inspired you. Is always with you whether they're still alive or not. But many unique challenges and going into this particular project that this was a lot. Thinking and trying to go over things but what really consider what what it meant. They also to stand on its own Beers a movie has to be thrilling funny and emotional moving so. That the child was with sort of crazy but what we found very early on with the opportunity was bigger than. The pressure I challenge of it. I was talking with the cast and they are not. Still going to be. And others bed and a good. I asked them what punishment would be if they need to do anything basements and death so what what is the punishment of the cast makes anything death. But you'd think yeah I'm but today went went went in. Came out and the. Crowd went crazy when it it was because somehow all of these people who for months. Known. His involvement they didn't tell the people that didn't tweak the thing they didn't post to me like. And you see when you get a reaction like this why it's important to preserve for the audience the fun. A surprise and so I think it's it's enough that seem annoying. But trying to be coy that it really is about for certain experience regarding. We spoke to Kathy and she talked about the challenges of keeping this under wraps and code names and she said the code name for the title with Trixie. I'm quite Trixie. It's word I liked it it has. You know nine and that you know has dying acts. And it was it was a tough. One word that for whatever reason felt like it was the right fit but but the best part was we had all these different for T shirts major production and lot of room where things have nothing to do at all Star Wars of the movie. And so there's a kind of series of these shirts that were made that have like you cars on them and you know musical instrument. Bikes and all these who have nothing to do with the movie but Patrick she hidden in the here there Hirschfeld drugs it was kind of fun to like. You know find ways to for the crude it could church that they would be part of it. What's human secret club what are some of the other interest in cutting attack well I mean we get a little like this because. Things can we get out of character names locations. Props ships. Everything has a name. Now we gonna find out who raped parents I will say that that the that we knew going into this that this movie this had to be a satisfying conclusion. And we are well aware that that's one of the the things that's sort of been out there and I don't wanna say that what happens in episode eight you know do we. We have honor that you know but I will say that there's more to the story. And ended on that. But don't teaser that's pretty good that would really that could happen. The rise of skywalker will be in theaters this December I'm Paula Ferris in Chicago for ABC news live from the force be with you.

This transcript has been automatically generated and may not be 100% accurate.