Factual error: The bad guys are vanquished, and Wyatt boards the train and heads off into the sunset. Two problems with that scenario: from Los Angeles, heading West puts you into the Pacific, and Wyatt didn't have to take the train, he lived on West 17th Street, in Los Angeles.
Other mistake: The hooker's killed on dry land, bloodied before being dragged into the water yet she somehow has dried blood on her face when discovered.
Continuity mistake: The main villain is trying the soft approach and wants to persuade David's ex-wife to side with him. As they are having a conversation about the bank loan, John Steiner's glass is raised - or not - depending on the camera angle. (00:37:00)
Audio problem: When in the bar before being put in the cell, Dolph grabs a gun from an MP and starts shooting up the bar. The sound of gunfire starts a split-second before he starts shooting.
Revealing mistake: Clearly not Susan Blakely when she goes topless. Her hair suddenly becomes curlier, that's a body double.
Continuity mistake: When Chris has a gun aimed at Evelyn he's holding it with his right hand. A shot behind him and suddenly it's in his left hand.
Visible crew/equipment: When Guarino is being taken away by The Hunter, you can see the rope used to pull him in the upper right corner of the screen. (00:46:05)