‘Whalefall’ Built a Practical Whale Stomach to Swallow Austin Abrams Alive

20th Century Studios recently released a second thrilling trailer for Whalefall, and unlike the first look, this one shows us a whole lot of what happens after Austin Abrams gets swallowed by an enormous sperm whale.

Maybe a little too much?

Abrams, who broke out in Zach Cregger’s Weapons and will next lead Cregger’s Resident Evil, stars as a scuba diver searching for his deceased father’s remains when he finds himself directly in the path of an 80-foot, 60-ton sperm whale.

The new trailer shows Abrams desperately attempting to avoid being sucked into the whale’s mouth as it feeds, only to be swallowed whole. From there, we get a much bigger look inside the belly of the beast, where he’s battling stomach acid, a dwindling air supply, and even other sea creatures while desperately trying to find a way out.

And apparently, a lot of what we’re looking at was actually there.

Speaking with Empire, director Brian Duffield revealed that the production built a practical whale stomach set to make Abrams’ predicament feel as visceral and claustrophobic as possible.

“The whale’s heart is beside the stomach, so throughout the movie it is beating and the stomach is reacting to the beats,” Duffield tells Empire.

The practical set could also be filled with water, which created some serious headaches for the production. Duffield explained that draining the water would cause the stomach to change shape overnight, making their carefully planned storyboards and previs essentially useless once they were actually shooting inside it.

And Abrams apparently wasn’t alone in there, either.