Which countries were used to film the odyssey?

The 2026 epic fantasy action film The Odyssey, written and directed by Christopher Nolan, is an adaptation of Homer's ancient Greek epic. While the film’s production details such as casting and studio involvement are documented, the provided evidence does not include any mention of filming locations or the countries where the movie was shot. Consequently, based on the current verified sources, we cannot identify the filming sites for this production.