On Set With the Cast of 'Deepwater Horizon'

ABC News anchor Elizabeth Vargas goes behind the scenes of the new thriller.
2:44 | 09/29/16

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Transcript for On Set With the Cast of 'Deepwater Horizon'
We are back now with the new movie "Deepwater horizon." We have had several of the film stars here in the studio this week shedding light on the tragic oil rig disaster. Kurt Russell Dylan o'brien also star in this movie and ABC's Elizabeth vargas got to visit the set in New Orleans and hear from the cast. To bring this harrowing story to life on big screen Hollywood turned to some of its brightest stars. Mike, what is that? Is everything okay? Mike. I'll call you back. Reporter: But this is the real centerpiece a deepwater replica 80% of the size of the real one. It took eight months to create and 85 welders. Star mark Wahlberg says the film gave him a glimpse into life on a massive rig where in this case more than 100 crew worked and lived. I take my hat off to these guys. You're off, leaving your family. It's hard, hard, dangerous work. Reporter: Dangerous work done by real people whom the actors each portray. Dylan o'brien, that meant an added responsibility. At the end of the day you want to -- you want them to be happy with what you've done, you know and how you've represented them. Reporter: Wahlberg and Kate Hudson who plays his wife each frequently consulted with their real-life counterparts, Mike and Felicia Williams. It's great to have the person there so you can actually talk to them and really get their experience. I think Felicia sort of went into survival mode. Reporter: Also starring in the film is Hudson's father, Kurt Russell who plays installation manager jimmy Harrell. This man, he is a real man. I felt very responsible to him. I do hope jimmy Harrell if he does see this looks at it and says, it made sense. Reporter: The explosion on the deepwater horizon killed 11 people and triggered the worst oil spill in U.S. History. There were years of litigation and accusations that the company in charge. BP put profits ahead of safety. BP was judged to be reckless and guilty of gross negligence in court. There were a lot of skepticism about you guys taking this on. Uh-huh. About whether you were going to trivialize it somehow. Look, some corners were cut and some mistakes were made. It's very dangerous work as it is. And something happened. You know, and so we're just telling the story as truthfully as we can. I mean for us it was always about the human story and showing what those brave people went through. Reporter: Elizabeth vargas for "Good morning America," in New Orleans. And "Deepwater horizon" opens nationwide tomorrow.

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

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