 DATE: Numerous errors in the history of the Roman Republic: The last  influential senator named Gracchus died some twenty years before the  events depicted in the movie. Caesar never commanded the garrison of  Rome. This garrison did not exist during the Republic; it was a  creation of the Caesars and usually consisted of German mercenaries  whose loyalty was to the Emperor rather than the Senate. Several  times during the Imperial period, the garrison placed someone on the  throne rather than allow the Republic to be restored.