One of my favorites is "Midnight in the Garden of Good and Evil", about events that took place surrounding a shooting and death in Savannah, Georgia.
It's based on a true story and my roommate at U.T. was the President of the Chamber of Commerce in Savannah when all this happened.
Clint Eastwood directed the movie by the same name. Savannah is cool, especially in and around the historical district, including river street!