In this movie the christians are not unconditionally angelic.
In this movie the Turks are not animals or barbarians.
In this movie the muslims are fighting against evil.
In this movie the Serbian king is depicted as an evil person.
If these FACTS will bother you, then don't even consider watching this movie.
This is not a documentary, and hence it won't be historically 100% accurate.
There will be fiction added, like any other movie.
If these will give you a headache then don't watch this movie.
But, for everybody else, this is a great action movie.
But, for everybody else, this is a great action movie.