Sharks and ships...
I haven't bothered to look up whether this is historically accurate, but after seeing this clearly all logic goes out the window. With this as the backdrop how are people complaining about 1) black people in Rome, 2) a sixty year old Denzel holding his own in a sword fight against someone half is age.
As far as I am concerned after that scene, all bets are off. Clearly this is not a documentary!