The position and size of the "S" scratched on the shield changes between shots: it is slightly larger and slightly higher & to the right of where it was when it was made by the sword point.
In the beginning a man on a cross begs Randus to kill him. Randus obliges him by shoving his sword into his stomach. BUT when he pulls the sword away, there is NO blood (red paint) on it.
Several scenes with a blue NIGHT time sky. Obviously filmed in daylight with a filter to darken the scenes. Just does NOT work. The sky at night is ALWAYS black. The director should have filmed at night with flood lights. That works better.
The story takes place during the triumvirate of Crassus, Caesar and Pompey (65-60 BC), but when Crassus talks with Verulus and Randus, with the Sphinx serving as background, it is plain that the monument has already lost its nose - a fact that would take place 1850 years later.
In the English version, Gulbar, a romanized Egyptian, mentions "the river Seine" in Gallia, but during his time, the river was still called "Sequana", in Latin, or "Sicauna", in Gaulish or Celtic.
When the "bloodless" execution device is shown, the transparent portions are obviously plastic sheeting, almost 2,000 years before plastic was invented.
Though the setting is 48 BC, the riders on horseback are using stirrups. The stirrup was not invented until the Jin Dynasty in China sometime in the early 4th Century AD. It then spread westward but did not arrive in Europe until the early Middle Ages (late 6th Century, early 7th Century). It was introduced to Europe by the invading tribes (from central Asia) that brought down the Roman Empire in the 5th Century. So, not only is the stirrup itself an anachronism, but the mere fact that a Roman was using stirrups is an anachronism. Not only did Romans NOT use stirrups (because they were ignorant of their concept and existence), it was their enemies, their conquerors that used them.
In the English version, the mercenaries serving Crassus are called "Licians", but their black features and leopard fur outfits identify them rather as Lybians or Nubians.