Other: The brothers executed the "Fag Man" by crossing their guns and the bullets coming out of opposing eyes. You can see when they show the flashback of the execution that the guns are held at nowhere near enough of an angle for the bullets to cross and come out the eyes.

Continuity: As Rocco is about to shoot the two young peons and the bartender in the Lakeview, he aims his gun from behind the left panel of his coat. He then fires, which should leave a hole going through his coat, yet none can be seen for the rest of the movie.

Other: In the scene when the brother is calling the number on the Russian's pager, he writes down the name of the hotel before you hear the Russian say the name over the phone.

Continuity: In the scene where Connor is writing the hotel information down from the Russians, the position he is writing on the paper changes from directly underneath the last line to further down on the page back to directly underneath and further down again.

Other: In the scene at the bar when the Russian gangsters arrive, Ivan speaks with a heavy Russian accent. In the scene directly after the bar fight, after he kicks in the door to the apartment, Ivan yells his first 4 lines with no accent.

Continuity: In the hotel scene right before Murphy and Connor pull Rocco in, look at Murphy's gun. The suppressor isn't on straight. Both before and after this shot the suppressor is on perfectly straight.

Continuity: When the cops find the Russians in the alley, one corpse has a giant footprint on his back. This allows the detective to form his "serial crusher" theory. However, when the events are shown later, no footprints are ever made on the Russian. Connor doesn't land on him, feet first, and he's never stepped on, while Norman searches and cleans up.

Factual error: In the scene, where Paul Smecker is checking the green trash-bin, he finds a bullet from Ivan Checkov's gun. Nevertheless, earlier (in the plot), or later (in subsequence of the scenes), in the scene, where Connor MacManus is falling down with toilet on Russians' backs, Ivan Checkov, while the toilet hits his bald head, is shooting with his gun, but he misses the trash-bin - the angle of shooting is obviously too extreme to hit the bin.

Other: When Paul Smecker tells Detective Dolly: "Well, now that Duffy's relinquished his King Bonehead crown, I see we have a new heir to the throne," "throne" is misspelled on the DVD subtitles as "thrown."

Continuity: After the bar fight, one of the brothers pulls off the toilet and throws it from the roof. But if you compare where he throws it from, to where it hits the people, it doesn't make any sense, the angles just don't work out.

Continuity: In the scene where Agent Smecker is doing a gunpowder residue test with liquid paraffin, his left hand starts off on the corpse's wrist, then in the next shot, Smecker's hand is by his chin. In the next shot, it is back on his wrist. In the last shot his hand is back by his chin.

Continuity: Norman Reedus' Irish accent falters often, particularly when his voice is raised.

Other: In the scene where Connor and Murphy are waiting to hear from Rocco, the phone rings with an "electronic" style ringer, yet when Murphy quickly picks up the phone you hear the sound effect of a mechanical bell being jarred. The same bell is heard when he hangs it back up.