Just a minor correction Meta, the film is about the fall of the Kingdom of Jerusalem, a Crusader state from the first Crusade, to Saladin and his muslim armies in 1187, an incident which sparked the Third Crusade a few years later to reclaim the lost land, lead by Richard the Lionheart himself. (however, I doubt we'll see him in this movie)
I'm going to see it May 5, looking forward to as Ridley Scott is one of my favorite directors. (Gladiator, Alien, 1492: Conquest of Paradise, Black Hawk Down) ^_^