The historical drama, which is directed by Russell Crowe, tells the story of an Australian farmer, Connor (also played by Russell), who travels to Turkey to find his missing three sons after the Battle of Gallipoli, in 1919.
In the exclusive clip, Olga, who plays a widow called Aysha, says: “It’s a beautiful story, I love the script and of course I fell in love with the character”.
“Everybody pressures her into marrying her husband’s brother. She manages to stand up for herself.”
The stunning actress also reveals how she met with a widow in Turkey to get more of an understanding about the character she plays.
The film stars several Australian actors including, Ryan Corr, Isabel Lucas and Jai Courtney. It will be released on Christmas Day.
Watch the video above.