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.
Plot hole: When Ace is in the boat dock he and Einhorn fight. He grabs her hair and hits her head on a pole. Later, when he is revealing her true identity he tries to pull off her wig. He would have known it wasn't a wig from the fight. (01:13:50)