Since Marcinus intentionally keeps his real name hidden throughout Gladiator II's runtime, ... Marcus Opellius Macrinus was a Roman emperor who reigned supreme from April 217 to June 218 ...

In "Gladiator II," a fighter is seen riding into the Colosseum on a giant rhino. This isn't likely to have happened, given that the animals were mostly there to be tracked and killed.

“Gladiator II” tells the story of another righteous, ostensibly simple man, this time named Lucius (Paul Mescal) who is swept up by violent political forces seemingly beyond his control.