Chris Hemsworth says the 21-minute fight scene in 'Extraction 2' took 'about 6 weeks' to film with 400 extras

• Chris Hemsworth is back as Tyler Rake in "Extraction 2" and this time he's upping the ante.
• The action star spoke about filming a 21-minute fight scene that took "about six weeks" to film.

Chris Hemsworth is back as mercenary Tyler Rake in the sequel to the popular Netflix flick "Extraction," which sees the commando trying to rescue a family of an imprisoned gangster.

At one point during the film, Hemsworth embarks on a 21-minute fight sequence that took "about six weeks" to shoot, the actor said Tuesday on "Good Morning America," and included "3- to 400 extras."

During that particular shoot, Hemsworth was even lit on fire at one point.

"We would shoot for 14 hours a day," the actor said of the action-packed film, which also stars Idris Elba. "It was by far the most exhausting, physically draining, taxing experience I've ever had."

In a separate interview with People magazine, Hemsworth admitted that many of the stunts went wrong during filming, yet he was still excited to try them.

"Initially, when [director] Sam [Hargrave] pitched it to me, I was kind of shaking my head going, 'Hang on, hang on, how is this even possible?' And then the excitement kicks in," the actor told the magazine.

"On the day, it's like being a kid," Hemsworth continued. "It's like being involved in the most crazy sporting experience you've ever been a part of."

"Extraction 2" launches on Netflix this Friday.