Hera Hilmar attends 'The Oath' premiere during 64th San Sebastian Film Festival at Kursaal on September 18, 2016 in San Sebastian, Spain.

Still of Hera Hilmar from The Oath directed by Batasar Kormakur

Hera Hilmar in The Oath directed by Baltasar Kormakur

Still of Hera Hilmar from The Oath directed by Baltasar Kormakur

Hera Hilmar and Baltasar Kormakur in The Oath

Baltasar Kormákur and Hera Hilmar in The Oath (2016)

Baltasar Kormákur, Gísli Örn Garðarsson, and Hera Hilmar in The Oath (2016)

Gísli Örn Garðarsson in The Oath (2016)