The stars of the 'Lego Ninjago Movie' dish on the upcoming film

Olivia Munn, Dave Franco, Justin Theroux, Michael Pena and Fred Armisen open up about the highly anticipated movie.
4:57 | 09/19/17

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Transcript for The stars of the 'Lego Ninjago Movie' dish on the upcoming film
movie "Lego ninjago" fighting to defend their island home. It's great to have Dave Franco, welcome, Dave, justing they are row, Olivia Munn, Fred armisen and Michael Pena. I don't know about -- so exciting. I mean, saw you with your legos. How excited are your family members about seeing it. Mine are excited. I play his favorite Lego and we've been building it for five years. Well not one thing for five years but we've been doing little things because they have this whole like a TV show for two seasons. Not six seasons apparently. Oh, wow. That's it. That's my story, I'm sticking to it. Well, you know, Dave, you're the youngest of three boys. Yep. And your, of course, James Franco, another actor. But I understand your nephews are big into ninjas, I mean, legos. Yeah, they came to the premiere. I don't know if they are big into legos but they are now. Because of you. Well, one of them is saying he'll be the green ninja for Halloween so I think I did my job. Get it for free now. Exactly. Good uncle. Well, the cool thing about "Lego ninjago" is when we all signed on we wanted to do a Lego movie because they were so amazing and loved them so much. But then we all found out that Lego ninjago is like the fight club for kids like kids are obsessed with it and you don't really talk about it until you're in it and find out about it and it's this whole world where they go crazy. Like his son will tell you they go crazy over it. Fight club for kids. They just fight with the LE legos, you know what I mean. He doesn't come home with bruises. Justin, do you agree with that analogy. Yeah, like I got the job when I had no clue this ninjago was even a thing and tell a friend, oh, my god, you're playing who and they freak out and you become this celebrity for 10 and unders. You are garmadon. Can you give us a little of the evil -- Come on. Do it, do it. Do it. You were clapping. You couldn't hear it. You clapped over it which is great. It was there. Well, we are humbled that we could play just -- You are in the open of the movie. Teeny part. How was the experience? Oh, now we feel like we're being interviewed. The experience was great. It was really was cool to sit -- Did you do it together. You really get it into. You got big laughs. You guys were in it a lot. Did you record at the same time. Yes. Feed off each other. Yes, we did but did you record -- We did one epic recording session. Well, it just so happens we have a clip and it's of us. Oh. Good morning, ninjago. I am robin Roberts? And I'm Michael Strahan and I am pumped to be bringing you the news. Pumped! You know this man, Fred. I was pumped! But you know speaking of like voices for us it was kind of we're being ourselves but, Fred, you've been on "Saturday night live" and was on for 11 years. Yeah. Now, you've done so many amazing characters. Did any one character in particular get your voice ready for the one you play in the movie. It was me as me. The voices we did were us sounding like ourselves except for Justin. I rorded without them for the longest time and we went in to do a group record, I was like, wait, aren't you guys doing voices? Why am I the only one. Yeah. Just me as me pretty much so I was preparing my whole life. Olivia, I love the Instagram photos. Quite ninja-like. Yes. In some of these videos. Yeah, well, I'm a practicing ninja. Oh, yeah, that is me. Yes. Is that you training? Well, that -- she was my fight trainer during all of "X-men" one of my best friends and I grew up doing tae Kwon do so my Asian mother is happy it's used in animation and real life. Very happy. Let me just say, it's wonderful, this movie and for everybody, young, old, doesn't matter and it's wonderful at this time to be able to go into a movie theater and just enjoy yourselves like that. Yeah. I mean that. And it's wonderful to have you guys here. I mean I'm thinked. Every time I get to see everybody I'm so happy. Thank you guys for coming in. We love you. Thanks for having it. "Lego ninjago" hits theaters this Friday. Coming up we're working out with Donald driver.

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

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