This movie creates a lot of emotion. It kept us on our toes. It has an historical aspect to it from multiple points of view (English, Greek, American, Ottoman and Turkish), which the production does a great job of including. I am separating the Ottoman point of view from Turkish one, since Ottomans then included Greeks, Armenians, Turks, Kurds and Jews, and their point of view was completely different than all the rest as depicted in the movie (like Halil's dad and Dimitris' brother).
Nationalism is bad everywhere and atrocities did happen.
Acting was pretty good with the exception of Mimi Denisi whose acting towards the end was kind of flat.
This movie's narrative is similar to the stories my displaced grandparents would tell. My family even has the deeds of land from Smyrna. I would advise some history reading for the nationalist haters out there. A quick search would show Izmir's history. Izmir/Smyrna had a huge Greek population since its founding (2500 years ago) up to 1922. Please note to the Nationalists that this is a movie.