Continuity mistake: At the end of the movie when the mob guys come to the boat house to move the body, Barry the Blade shoots a raccoon with his gun which has a silencer. But, later when Reggie shoots the neighbor's alarm system with Barry's gun, it does not sound like it has a silencer anymore.
Factual error: When Mark and Reggie are fighting over whether or not to go to New Orleans, Mark starts walking toward the Memphis-Arkansas Bridge. There would be no need to cross that bridge as New Orleans is due south on Interstate 55. The Memphis-Arkansas Bridge is Interstate 40 and goes to Little Rock, AR or north to St. Louis.
Continuity mistake: Near the end of the film, in the diner, when Reggie Love is giving Reverend Roy the location of the senator's body. The camera switches back and forth between the two as they are talking. The ballcap Roy is wearing is backward, but in each scene, it is on a different place on his head. Low on forehead, high on forehead, and then back again. It's especially noticeable because of the amount of hair showing.
Plot hole: When Reggie is interviewing Mark in the hospital, she tells him that she will pick him up tomorrow about 2:30 for a 3:00 meeting with the FBI. But the next day, Mark comes running into Reggie's office after the attack from the hitman the night before, and she asks him what's wrong as if she hasn't seen him yet. The FBI shows up just seconds later.
Continuity mistake: In the early part of the movie, when Johnny Sulari is talking to Barry "The Blade" in his office, in the picture windows behind them a large barge can be seen carrying cargo that is passing by on the waterway in the background. As the scene cuts back and forth between the two men, the barge appears, disappears, then reappears continually.