Continuity mistake: During the train scene, Spider-Man's mask had gone partially black. We also see it when Spidey puts his mask back on. Yet when Doc brings him to Harry, we don't even see a patch of darkness on his mask.
Continuity mistake: Right after Budd shoots Beatrix, he kicks her sword away from her, but the sword keeps changing position in subsequent shots. Sometimes it's on the ground and sometimes it's stuck in the side of a trash can. (00:25:30)
Continuity mistake: While Ajax and Hector fight, Hector head butts Ajax, and three shots later in a wide shot, half of the hammer end of his unusual spear actually breaks and falls to the ground behind him to his left. But lo and behold, in the next close-up the bloody hammer end (bloodier than the previous shot) of his spear is whole and intact. (01:20:00)
Continuity mistake: In the scene where the Nemesis kills the 13 S.T.A.R.S members, after it blows up the sniper on the roof an additional S.T.A.R.S member can be seen outside the building on the right who wasn't there earlier. He then disappears shortly afterwards.
Continuity mistake: When Hutch tackles Starsky to the ground after his gun goes off in the disco, Starsky's badge falls to the ground beside his head. Hutch grabs it and holds it up, telling people to calm down, but when the shot returns to Starsky the badge is still there next to his head. (00:49:40)
Continuity mistake: When Hellboy is walking at one point, holding his gun up in his left, gloved hand (just after one of the agents has said "This place is like swiss cheese"), watch the frame. It switches suddenly so his right hand (the stone one) is his left, and he's holding the gun in his "right." (00:59:40)
Continuity mistake: When Jack is briefing the President, he draws a line on a map of the U.S. and tells the President to have everybody south of that line evacuated. The shape of the line changes three times between shots. (01:04:20)
Continuity mistake: In the Moscow car chase, Bourne's car is hit from the driver's side by a patrol car. The driver's side window breaks. In the next few shots, you do not see any broken glass on Bourne. In the very next shot the car is not damaged on the driver's side. (01:25:25)
Continuity mistake: When Vince leaves the freezer and is making his way onto the elevator, he is carrying a Baretta model pistol. When he shoots as the elevator doors are closing the camera cuts to a Glock model pistol, then back to the Baretta again. When the elevator reaches the upper level, the woman picks up the remains of the backfired pistol and it is back to the Glock. (01:21:15 - 01:24:30)
Continuity mistake: In the scene where Jack and Lenny are arguing about Dennis's death, the cup on the table gets knocked over. The next shot, the cup is standing up. The next shot, it's down again.
Continuity mistake: When Chris and Dani are at the police station and about to have sex, her shirt mysteriously reappears. They are kissing and Chris is shown removing her shirt (leaving her in a red bra). A few seconds later they are still kissing, and you can see that her shirt is back on. (00:58:55)
Continuity mistake: After the wild end-chase explosion, Ford is thrown in front of a bus. When you first see the bus, an old man without a beard drives, yet two shots later, it's a completely different man with a big, brown beard driving.
Continuity mistake: 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. (01:49:50)
Continuity mistake: In the scene where Lex is running in the abandoned whaler camp, the "shield" she is holding keeps changing hand between shots. (01:18:05)
Continuity mistake: When Lucius is putting aftershave on in front of the mirror, he hears the robot outside and runs to the window, leaving the bottle of aftershave on the desk with the lid off. He returns to open the drawer, and the lid is back on. (01:29:00)
Continuity mistake: The sign says it is 3rd down with 10 yards to go. Announcer says the play went for 6 yards, but the sign now reads 4th down and 8 yards to go instead of 4 yards to go. (01:33:40)
Continuity mistake: When Ben is first confronted at his father's car by the FBI, you can see Chase and Riley in the background standing there and then turning around and leaving. Then as they arrest Ben against the car, you can see Chase and Riley just turning the corner, noticing Ben being arrested, and leaving.
Continuity mistake: At the very beginning of the movie Patience is at work. She gets yelled at by the boss, she goes home and can't sleep because the neighbors' music is too loud, then she goes back to work. It's the next day, but Patience, her coworker and her boss are all wearing the same clothes. They even make a point to comment on how awful her outfit is and she's wearing the same awful outfit the next day.
Continuity mistake: As the priest descends down the rope ladder into the church for the first time he is handed a lantern by his friend. In the next shot the camera is looking down and you can see that the friend is holding the lantern. Then the next person goes down the same rope ladder and the friend is not holding the lantern, where did the lantern go?
Continuity mistake: In the beginning scene where Queen Latifah is racing on her bike, the bike constantly switches between a BMX and a Mountain Bike.