Factual error: Evil 'sangoma' witch doctor Randoku is supposed to have almost superhuman abilities, but the cops that chase him in Rome aren't too shabby either; they somehow manage to give chase from Piazza di Spagna to the Colosseum to Castel Sant'Angelo. That's roughly 3 kilometres from one landmark to the other, on foot, within minutes.
Factual error: The protagonist, Cole Hauser, works for the Clinton police, as it is written everywhere on the police cars and the T-shirt he wears. However, he is assigned to murder investigations that take place by the river, and plenty of locations (the bar they hang out at, Morgan Freeman's college) are explicitly in Jackson.