Continuity mistake: When Marcus Aquila and Esca set off for the North they are riding horses, Marcus on a dark brown horse, with a short mane and Esca on a bay (you see close ups of them on the horses, and several screen shots of them galloping on them). However, after their first overnight stay in the North, Marcus' Horse is black with a long mane, Esca's bay horse is suddenly a white horse with no explanation for this. His horse remains white for the rest of the movie.
Continuity mistake: At the end of the movie, when Liam Neeson looks around at the wolves approaching from the forest, the black frostbite mark on Liam Neeson's face is on his right cheek instead of his left cheek. (01:50:00)
Continuity mistake: In the opening scene just before Victoria descends into the cave, she's wearing two headlights, the bigger one is on her right side and the smaller one is on her left side. In the next scene while she is talking to Josh, the position of those two headlights changed. (00:15:10)
Continuity mistake: When Tybalt smashes into the wall and breaks, there are a few pieces and he's shown to be hollow. But when he's put back together and is dancing at the end, his arm and leg break off and are now solid.
Continuity mistake: When Conan first fights Remo, Conan places a blood stain on his forehead by pressing his sword to it. Remo then runs off, and Conan gives chase immediately, pausing only to get Tamara on his horse. The stain is still there when Conan mounts his horse. The next time we see them, Conan and Tamara is still chasing Remo, but now Conan's face is completely clean. It is highly unlikely he would pause in pursuit of one of his father's killers to wash his face. (00:47:55)
Continuity mistake: Grace gets the plate with the breakfast order, consisting of two eggs, two bunches of fries, 2 slices of bacon and 3 sausages. She rearranges them to serve them in a funny face pattern, supposedly, but one piece of sausage is missing, the fries are soaked in oil and eggs and bacon appear less cooked than before. (00:02:00)
Continuity mistake: In the 'match' when he tags with John Cena, Fred is picked up by the rival vampire in a fireman's carry position (kinda like for Cena's Attitude Adjustment), but his head is over the opponent's right shoulder in the first, wide, shot and towards the left shoulder in close-up.
Continuity mistake: At the end of the fight where the altar boy must prove his fighting skills, the sword changes hands between shots when his hands are up.
Continuity mistake: During Cardinal Richelieu and Milady deWinter's first conversation, the Cardinal's hands repeatedly change position between shots; sometimes he is holding both up, sometimes they are both down, sometimes one is on the table etc.
Continuity mistake: In two scenes featuring close-ups of the fireplace days apart, the same logs are burning.
Continuity mistake: When Nick is talking to Kate on the roof about how he is in love with her, what is on the ground behind him changes from shot to shot. First it's a semi truck with FedEx on it, then it's a plain white trailer on its own, then it's a yellow cab and finally when they switch places and Kate is facing away from the edge it's a black car.