Commodus: The general who became a slave. The slave who became a gladiator. The gladiator who defied an emperor. Striking story! But now, the people want to know how the story ends. Only a famous death will do. And what could be more glorious than to challenge the Emperor himself in the great arena?
Maximus: You would fight me?
Commodus: Why not? Do you think I am afraid?
Maximus: I think you've been afraid all your life.
In the "Battle of Carthage" in the Colosseum, one of the chariots is turned over. Once the dust settles you can see a gas cylinder in the back of the chariot.
The two prostitutes who were all over Maximus after his first battle in Rome, and after the fight with Tigris when Cicero gave him the idols, are both amateur adult film stars. Prostitutes were very common during this time and were often rewards for gladiators who had proven their mettle by surviving many battles.