To make the phone call scenes between Søren Malling and Pilou Asbæk appear authentic on film, director Tobias Lindholm filmed those scenes as actual conference calls with Malling being in Denmark and Asbæk being in Kenya.
When Mikkel (the cook) talks for the first time with his wife and the negationers after the capture, in real life they haven't been talking for months and everything was taken in one shot for authentic matters.
