Actors and director Tom Harper tell EW about filming the thriller thousands of feet in the air.
Like, you know, making sure you still look pretty.
Suddenly youre just 1,000 feet in the air.
Robert Viglasky/Amazon Studios
And, because its totally silent, theres no moment for the fear to kick in, remembers Redmayne.
Its so ostensibly, sort of, safe, Harper continues.
Until its not, Redmayne quips.
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We had complete trust.
And they absolutely needed it.
They took expectations and kept knocking them around right to the end.
Robert Viglasky/Amazon Studios
I shouldve asked you if you were scared of heightsbeforewe did the film, Harper admits with a laugh.
Watch EWs interview with Jones and Redmayne above.
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