After Richard is beat up by Tyler, Commander Dunne starts telling Richard about what it will be like if he doesn't go along with his plans. He says, "your life will fall the hell apart," when his lips clearly say "your life will fall the fuck apart."
During the sequence that Santoro is being beaten by Tyler, Santoro spits a mouthful of blood onto Dunne's Naval uniform, mostly covering Dunne's ribbons of honor. Dunne uses a handkerchief to wipe some of the blood off, but because the ribbons are made of cloth, they are visibly permanently stained with the blood. Later, when Dunne is outside being asked to lower his weapon by the police, his uniform is completely clean, and the ribbons are also completely clean and not stained at all.
When Santoro is speaking with Lincoln Tyler in his room for the first time, Lincoln says he was head-butted and there are 2 butterfly stitches on his right eye brow. When he sends everyone out of the room you can clearly see that Lincoln now has 3 butterfly stitches on his right eyebrow while talking with Santoro.
When Rick and Kevin Dunne are sitting ringside at the fight, the Seceretary of defense is sitting behind them to the right, but when they look at the suspicious redhead, the camera moves toward her but when it comes back to them, they are Kevin Dunne is sitting directly in front of the secretary of defense.
A tidal wave originally planned was removed from the film, but not entirely: - The wave can be seen briefly in a few frames as the police van arrives near the film's end. It hits the van, which begins to fall over. In the next shot, the van merely swerves into the building. - Richard Santoro mentions a recurring dream about being back in the tunnel underwater; but since the tidal wave sequence was taken out, he was never underwater in the first place.
The ring shown at the end of the credits puzzles many audiences. It belonged to a woman that Dunne killed and put into a cement mixer, so claims that it introduces some continuity error related to Santoro are wrong.