Visible crew/equipment: While Tony is blackmailing Charles Swann, describing the story in the newspapers regarding the "middle-aged woman found dead due to an overdose...", just as Tony takes a seat on the table we can see the moving shadow of the boom mic on the wall, over the picture. (00:25:10)Super Grover
Continuity mistake: When Mark is talking to Margo early in the film in her living room, the camera shows a front view of her and she is standing in front of liquor bottles lined up on a table. Behind her, Mark is in front of the fireplace. When Tony comes home within minutes, the bar is next to the front door and the bottles are rearranged.Mozzie-6
Other mistake: The judge in giving sentence refers to the murder occurring on the 27th September. Towards the end of the film the implication is that the murder occurred on the 27th March e.g. he started living on the cash from the 27th March.