The Day of the Siege: September Eleven 1683

It shows the circumstances of the 2nd siege of Vienna and the assault of Ottoman Turks led by Kara Mustafa (Enrico Lo Verso) against the Habsburg monarchy.

The assault was stopped by King Jan III Sobieski (Jerzy Skolimowski), and curtailed Turkish expansion into central European Christendom.

[5] Director Martinelli explained that while that date is associated with the attacks on the United States, few people know that the date also marks the historical events of 1683 when 300,000 soldiers moved from Constantinople to Vienna with an intent to capture Rome and turn St. Peter's Basilica into a mosque.

During production in June, it was first revealed that with a planned-for 13-week shooting schedule, the film would be using over 100 actors from Poland, the United States, Italy, Romania, Turkey, Greece, Spain, and France, over 10,000 extras and 3,000 horses in the battle scenes.

[9] While complaining that the film's special effects graphics resembled those of a low-resolution video game, Polityka noted that while based in the times and location of the Battle of Vienna, the film is not strictly historical, but is instead a fictional drama, like any other historical movie.