Continuity: Towards the end of the movie, in the scene where Anna is taking the werewolf cure to Van Helsing and the vampire bride stops her on the large fallen pillar, she falls so she is in a sitting position with the cure in her left hand. She then switches it to her right. Then in the close-up shot, the cure is still in her left hand and she switches it again.

Visible crew/equipment: As the camera moves in on the bull that is about to be grabbed by the vampire, if you look under the bull, you can see two men hiding behind it. You can see their legs. They are probably there to keep the bull standing still. When it cuts they are gone.

Continuity: In the opening shot at the Ball when Carl and Van Helsing are to "trade" Frankenstein for Anna, everybody has a reflection in the mirrors at either side of the ballroom although they are later to be revealed as Vampires and have no reflection.

Visible crew/equipment: When Anna picks up the sickle you can see a shadow moving. It has to be a crew member, because when it cuts, we can see that no one is standing anywhere near her.

Revealing: When firing the cross-bow, Van Helsing runs out of arrows, but the bow's cannister is completely full of arrows. In the same shot he simply spins once and they all disappear.

Revealing: At the windmill when the fire reaches the cases with Absinthe bottles the cases explode. Howeverm when the explosion occurs we can see sparks. I'm pretty sure an explosion like this wouldn't produce sparks, so it's obvious the explosion was ignited by some explosives.

Revealing: When Dracula walks up the wall (the first time we see him in color), in the overhead shot the torches wobble slightly from where the separate photography was composited in.

Revealing: When Van Helsing enters the secret-society under Vatican City, in the distance you can see a giant mirror used to reflect the set to create the illusion that the room is much bigger than it really is. You can see Van Helsing and the priest's reflections at the top corner of the screen several times (Confirmed on DVD commentary).

Continuity: When they first meet the second wolfman in the castle, he transforms into a human and talks to his sister. When he made his transformation he wore a open yellow shirt. When he changed back into the Wolf, the shirt tore off. So if the man had been a wolf not five minutes before, wouldn't the shirt have already ripped off? Same with the legs of his pants.

Continuity: When Velkan hangs on the rope and is being pulled up he looks down and the werewolf climbs up the wooden pole and you can see scratch marks on the top of the pole. Then the second time he looks down at the werewolf you can see the top of the pole is scratch free and the werewolf makes the scratch marks again. If you have a close look at these two scenes you can see it's the same scene played twice, but with a different roaring sound from the werewolf.

Continuity: When Carl explains everything about vampires and Van Helsing wonders how he knows so much about them, Carl says "I read". Then he notices the 'Glycerin 48' and says "Ah." The shot changes, and now Carl suddenly has his hand up.

Continuity: When Dracula and Van Helsing meet for the first time, Dracula's hand placement changes between shots. This happens twice, once when he is saying 'But like me, hunted by all others." During this, his hands move from his side to taking his gloves off. And again, when he says 'You are the great Van Helsing,' his hands move from his sides to being in the air.

Continuity: When we first get to Carl there is a man behind him on a some sort of power generating machine. Then the man suddenly almost get electrocuted and smoke rises all around him. When it cuts to Carl walking to Van Helsing we can see the man in the background but now all the smoke is gone.

Continuity: When Anna is looking for her brother who fell off the cliff, there is a closeup of her where you can see some bushes in front of her. When it cuts to a wide shot you can see there are no bushes anywhere near where she is standing.

Continuity: When Carl picks up the silver stake Van Helsing is holding the bag with clenched fists. When it cuts to Carl putting the stake into the bag, Van Helsing is holding both his thumbs up.

Continuity: When Velkan changes into a werewolf in front of his sister he still has tattered remains of pants on him. When he goes to Castle Frankenstein, and enters through the roof his pants are gone. When the Velkan werewolf lands on the ground and starts to change back, his pants are back on.