Must it be an original idea? I mean like could be an adaptation of something?
Adaptations are OK. How about we say nothing that's been made into a movie in the past 30 years.
CRUSADE
This would be a movie that takes place durring the crusades where Arnold is a theif who has been caught and is sentenced to death in England. The king notices that Arnold is one tough dude, but at the same time realized that he can lead an army. He spares Arnolds life and tells him to lead a special batalion of assassins into the Holy land and take what rightfully belongs to the Church of England. The movie starts out with Arnold having no faith in God at all, then he believes when he gets this second chance that God has somehow given him this second chance... He brands his back with a cross and vows only to serve God and the Church of England. As he arrives in the Holy land he is taking his unit of assassins (made solely of former criminals) to kill various Muslim leaders and Jewish leaders. As the movie progresses Arnold will begin to learn about the Jewish religion and Islam and through all this killing, the hipochracy of each religion becomes obvious. He is distraught over this and decices he is going to win this war for the Church of England, but before control of the region is given he is going to murder all the English and French leaders also, so basically everyone dies.
This will be an incredibly anti-religious move, but contraversial none the less.
Opus,
You wanted me to write an original screenplay... This isn't one as this story was actually written, for a movie of the same title that was never made. Can you guess the author?