It is a 2006 movie. The last Prophet, Muhammad Peace Be Upon Him, never had any suicidal thought at any moment of his life. This was wrongly said in part two. Second thing is that Salah ud Din Ayyoubi was not a young man when he captured Jerusalem as shown in part 8. He was in his mid fifties. He did not distribute copies of Quran to his troops to be held during combat. Knowledge of Islam was part of the physical and combat training he provided to his troops. His troops had good knowledge of Islam and they were good practicing Muslims otherwise they would have done the same as Christians did when they captured Jerusalem from Muslims 88 years back.