Continuity mistake: When Catherine enters the precinct station, the desk sergeant places a small white file box on the counter. There's nothing else sitting next to this, but when the shot reverses, a tall black police radio with an antenna sticking up has appeared there.
Continuity mistake: The gold coin Vincent finds on Catherine's balcony changes from one scene to the next. When he picks it up, there's a very small section of it missing on one edge. When he shows it to Father in the following scene, nearly a third of it is cut away.
Continuity mistake: 3-10 "Invictus": Diana crawls through the pipe, which we were told at the outset is the only underground passage and is barely large enough for her to fit through. Yet after saving Vincent, she sends him back by the same route. He's twice her size and he's carrying the rescued baby, but somehow he manages to fit through.
00:39:00 - 00:41:50Jean G
Continuity mistake: Catherine enters the DA's office and passes his dart board. The six red and green darts lodged in the board rearrange themselves between takes. The colors are in a mixed pattern when she enters. One shot later, all the red darts are above all the green ones. When she pulls them free, they've returned to their original pattern.
Continuity mistake: Frank and Catherine drive up to the loading dock and park in front of a bright orange 18-wheeler that's being unloaded in the background. When they get out of the car in the next shot, the orange truck has instantly jumped to a spot much farther down the dock, at least 50 feet away.