10 Movie Mistakes You Won't Believe Made It To Screen
4. Gladiator - Gas Power
In the Battle of Carthage re-enactment sequence, one of the chariots is upended, and crashes into the wall of the arena. But before it hits the wall, you can clearly see a gas canister, that is revealed when whatever is covering it on the back of the chariot falls off.
I'm still not entirely sure why a horse-drawn vehicle would require gas power anyway, but capturing the fact on screen of a supposedly historically accurate film is just plain sloppy.
The film is actually full of errors, in terms of continuity, poor production errors and historical inaccuracies, but this one sticks out a mile as the worst offender.