Continuity mistake: When the woman falls near the beginning, her arms are out to her side, almost making a T shape, even after she stops moving. In the next shot, her arms are down by her side.
Tarantella - S1-E11
Character mistake: Hank's action as a cop towards the man on the boat makes no sense when going after Lena. He has to think the man he grabs is a potential victim. Obviously, he wants to keep him quiet, but there's no reason for Hank to hold his gun against an innocent man with his finger on (or near) the trigger.
Other mistake: In the final scene Hank walks away in the opposite direction to the exit and walks around a corner that goes nowhere. This is confirmed from an earlier scene when the thugs broke in to the apartment and they enter the hallway from the opposite end. (00:42:00)