Continuity: When Selene slams on the brakes sending Lucian off the car, his arm blade disappears during his tumble, and reappears in the same shot once he stops. Viewed best in frame-by-frame.

Factual error: Every time the silver nitrate is shown on clothing, it is shown as silver. Silver nitrate in fact is black once exposed to light.

Visible crew/equipment: During the final battle, a vampire shoots into a totally dark room and kills a werewolf. He then lifts his gun and people are seen reflected in the sights.

Revealing: When Selene notices the sword laying on the rocks, the sword moves up about two inches between shots, you can judge it by looking closely at the handle of the sword.

Continuity: At the end when the 3 vampires are shooting at Michael, Selene drops behind them. The blood on the left side of her head disappears and reappears a couple of times. When she's taken them out it's back again. And it gets bigger and smaller all during the time it's there.

Continuity: When Selene breaks the glass and takes out the old book the amount of broken glass on the book differ between shots.

Audio problem: Near the beginning of the movie, while Selena is looking at the CCTV video from outside the subway station, Kraven enters the room and talks to her. Throughout their conversation, the sound quality of his voice changes as he walks away from where the mic is located (by Selena).

Continuity: Selene is in Michael's apartment looking through photos, you can see the door to the apartment fully open in the background. When the phone rings, and we see Michael walking towards his apartment, the door is only partially open.

Revealing: When Selene is firing her guns in the floor making a circle of holes so that the floor collapse, you can see in some shots the angle of her guns are pointing all kinds of directions. Instead of making a perfect circle the holes would be spread around the floor and the bottom of the walls in the hallway.

Continuity: In the beginning when Rigel is about to jump off the balcony, some of his coat is hanging over the rail. When it cuts his coat is gone from the rail.

Continuity: When Michael grabs Adam's arm and Adam tells him to let go, Michael is holding Adam's arm close to his chest. When it cuts, Adam's arm has moved over to his shoulder.

Continuity: In the first scene when Rigel is crouching, taking pictures of the werewolves, he is holding the camera in his right hand just as he is about to jump down. However, when he is jumping, the camera angle changes and it can be seen that he is no longer holding a camera in his right hand.

Continuity: When Lucian goes flying over Selene's car, in the overhead shot we see that the road below him has large parts with visible concrete because there are no paving stones. But in the next shot, a close-up of Lucian landing on his feet, the road is fully paved with paving stones.

Continuity: When Selene writes "VIKTOR" on the mirror you can see the writing has changed in the next shot before she wipes it off.

Revealing: In the fight scene between Michael and Viktor, Viktor throws Michael in to a column and Michael lands face down. You can see his wire harness bulging under his pants.

Revealing: In the fight scene between Michael and Viktor, you can see several times where Michael's dark colored make-up has been wiped off his lips.

Continuity: When Selene runs up the stairs to release Michael from the chains, the door she left wide open is almost closed when the pursuers reach it.

Continuity: As Viktor's tomb is opening there is a shot from above showing Selene looking down the opening tomb. Watch the placement of her feet. In the next shot, her feet have moved closer to the opening.

Continuity: When Selene is chasing the Lycan in the subway and is surprised by him firing at her from behind her she turns around and gets down on her knees and fires back. When it cuts she gets down on her knees again.

Continuity: When Selene discovers the blood on the wall in the subway chase the blood changes appearance between the shots.