<P> Principal photography started on December 5, 2016, in Vancouver and continued until February 24, 2017 . Elba and Winslet filmed scenes at the Vancouver International Airport on December 6, 2016, and Elba also filmed scenes at the Abbotsford International Airport on December 7, 2016 . Filming stopped for Christmas holidays, from December 20, 2016, to January 3, 2017 . </P> <P> Filming resumed around Invermere and Panorama Mountain Village on January 4, 2017 . Winslet was spotted filming scenes at Eagle Ridge Hospital in Port Moody on February 8, 2017 . </P> <P> Most of the filming took place in Canada, on the border of Alberta and British Columbia . Abu - Assad has described the locations as having very cold temperatures, and tough and harsh filming conditions . Many scenes were shot on a mountaintop, and he and the crew had to drive 40 minutes before reaching the film's base camp . If the weather was okay, they could board the helicopter to reach their destination along with their supplies . </P> <P> On July 19, 2017, Winslet and Elba were spotted in London re-shooting some scenes for the film . </P>

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