In this scene, Clovis is converting to Christianity because he saw the Cross in the sky and later won a battle with it. He is vowing by putting his hand on the bible to follow the teachings of Jesus. The Pope will tell him to read a few lines from the Bible, and Clovis will then officially be Christian.
Convert to Christianity or DIE!
This scene of the movie is where the Franks have a battle against the Arab & Berber Muslims at the Battle of Tours. Arabs are the soldiers that used cavalry and the Europeans with Charles Martel (The Hammer) as their leader used his strategy and heavy infantry to find their victory.
In this scene of the movie, Pepin "The Short" became the first Frankish king to be anointed by the Pope.
I declare, Lothair, Pepin, and Louis as the kings of the Franks.
This scene of the movie is where Charles The Great (Charlemagne), starts spreading Christianity "at the tip of a sword", meaning that if you didn't convert, he will kill you.
In this scene of the movie, rear guard Frankish warrior, Roland, the nephew of Charlemagne, holds off the Basques (Spain). Since the Basques attacked from the back, the soldiers had to go get the rest of their army and Roland sacrificed his life by holding off the Basques.
This scene of the movie is where Louis the Pious weakens the empire by dividing it amongst his three sons.