DEADLINE: What was the process of rebuilding that cave?
This is an event that was seen all over the world and there were so many photographs.
In a way, there was a lot of freedom in that design, which was actually pretty great.

“Thirteen Lives"Vince Valitutti / Metro Goldwyn Mayer Pictures
DEADLINE: How do you create the chambers in a way that allows the cameras to film?
HUGHES: That was probably the biggest challenge.
Once we found our location for the exterior, we got that engineering process underway and started drawing that.

How do we shoot in whats supposed to be the dark?
So, we started with what happens when Saman dies and what happens when Chris loses the line.
We needed a moment where Chris loses the line and he gets lost.
One of them was 90 feet long, and the whole side was out so it was flat.
So, in those spaces, the camera could be on the side.
But it really was about them.
They were really willing to go for it.
HUGHES: No, we were prepared for doubles in those areas.