Christopher Nolan on Matt Damon Revealing The Odyssey Spoilers; Shares Behind the Scenes Stories ~ The Tonight Show Starring Jimmy Fallon

But also, the sets aren't even sets.

Were you in, like, a real cave?

We were in a real cave.

And my production designer, Ruth DeYoung, you know, when we were scouting, we found this giant cave.

And she said to me, well, let's just film it here.

And I was like, well, I've done a lot of cave movies, and we always build the cave.

We're going to wind up building the cave.

Batman anyone? Exactly.

I love it.

Yeah, I

think I've seen a bat cave or two.

Yeah, yeah, I love it.

and uh you know uh eventually ruth just convinced me it's like no this this really could work with an incredibly high ceiling a hole in the top so we could rig down through it and uh you know bring all of our stuff in and so every morning everyone would hike up this the crate the path that you see in the film like that's the approach to it you know where they go you get to see

But also, the sets aren't even sets.

Were you in, like, a real cave?

We were in a real cave.

And my production designer, Ruth DeYoung, you know, when we were scouting, we found this giant cave.

And she said to me, well, let's just film it here.

And I was like, well, I've done a lot of cave movies, and we always build the cave.

We're going to wind up building the cave.

Batman anyone? Exactly.

I love it.

Yeah, I

think I've seen a bat cave or two.

Yeah, yeah, I love it.

and uh you know uh eventually ruth just convinced me it's like no this this really could work with an incredibly high ceiling a hole in the top so we could rig down through it and uh you know bring all of our stuff in and so every morning everyone would hike up this the crate the path that you see in the film like that's the approach to it you know where they go you get to see