Other mistake: Towards the end of the film, after Snipes beats the crap out of a lot of vampires, Whistler throws Blade's sunglasses to him. They show him throw them in one shot, then in the next shot they show Snipes catching them. But look in the background at Whistler, he doesn't have the glasses, but is moving his arm like he is throwing them. The glasses must have been computer animated, and bad editing contributed to this mistake.
Revealing mistake: When Damoscinos is dying, just after being bitten, he stumbles to the ground. As he does so, you can see the tube feeding the green "blood" to his neck on the ground behind him.
Continuity mistake: After Nomak rips into Damaskinos's neck, Damaskinos backs up with no blood on his face, but in the next shot, his mouth is suddenly covered in blood and he is spitting up blood rapidly from his mouth.
Continuity mistake: In the middle of the film when the Bloodpack gear up ready to go out and into the sewers to find the reapers. Blade and Nyssa are talking at a table, Whistler shouts "hey Blade, give me a hand". In this shot we see Nyssa looking at Blade, but in the following shot she is now looking down and away from Blade.
Continuity mistake: At the end of the film when Reinhardt and Whistler are in a room together, Reinhardt turns and looks at the monitors and mouths "what the f**k?" he turns his head to the side, yet in the following shot his body is side on, and he is looking right at Whistler ready for the punch.
Continuity mistake: In the opening scene, Novak is walking down a corridor with a woman, and when she says, "Where did you get that scar on your chin? " Novak puts his hand to his mouth to cover it when he coughs, but in the shot from the security camera and normal view his hand is not at his mouth.
Revealing mistake: This is during the fight between Blade and Nomak at the House of Pain. While Blade is walking across the wooden platform, you can see Nomak readying himself to get launched on the platform.
Continuity mistake: When Blade is fighting the henchmen near the end, he lifts the last surviving one into the air and you can see Blade's hand through the henchman's throat and it is obviously a dummy. Then, when he falls backwards, his hand is not on his throat, it is on the henchman's shoulder.
Revealing mistake: When Blade slices Reinhardt in half, as the sunglasses fly off the two halves of his face you can briefly see that Reinhardt (or more precisely the CGI model of him) has no eyes.
Other mistake: At the end of the movie, when Novak bites Nyssa, Nyssa is screaming. You can clearly see mercury-amalgam fillings in her teeth.
Continuity mistake: When Blade meets the Bloodpack for the first time, Reinhardt (Ron Perlman) tries to instigate him, and the rest of the Bloodpack draw their weapons on him. When Nyssa motions for them to put their weapons away, we see a shot of the entire group putting their weapons down. Snowman(Donnie Yen) had partially drawn his sword, and resheathes it. Immediately afterwards it shows him doing this again.
Other mistake: When Blade is fighting Nomak in the House of Pain, Nomak pulls a steel bar out of the ground and Blade retaliates by drawing his sword. The way he does this however (Blade grabs hilt and the sword magically detaches from his back) would suggest that either the sword wasn't sheathed or he just cut through both the scabbard and his coat.
Continuity mistake: Just before the blood pack enter the house of pain, Scud shows Blade the pneumatic wristblades but doesn't actually give them to Blade. Blade can only be seen wearing them when he uses them on Nomak, after which they are gone again. I know they were retractable, but if you look even when retracted they should still have been visible.
Continuity mistake: During the sewer scene, Whistler says "well some of us can't see in the dark, nipplehead". Fair enough, humans can't see in the dark, vampires can. So why do they have the lights on the guns? As a UV weapon, constantly on but filtered for quick access? That's just about OK. But that doesn't explain why Nyssa uses a flashlight in the house of pain as she searches the rooms/corridor/loft.
Revealing mistake: Near the end, when Blade pierces Lomac's heart with the sword and blood comes out of his mouth, he starts wobbling around and they do a wide shot, behind Lomac you can see the tube that feeds the blood on the ground and it comes up under his costume.
Visible crew/equipment: When Blade is entering 'the house of pain' where all the vampires are dancing, a crew member is seen at the bottom right hand side of the screen behind a table, pushing a button which makes the door go up for Blade.
Continuity mistake: In the House of Pain sequence, Chupa is firing his machine gun at a Reaper who is fleeing across a balcony. As the shot cuts between different angles, Chupa's over-the shoulder angle indicates the Reaper has run over fifty feet. However, the balcony view where the Reaper runs directly towards the camera is the same section of balcony multiple times. Two female extras cower in terror against the wall several times before finally being killed by stray bullets.
Continuity mistake: When Scud is in his van looking to investigate a noise, you see a donut and a cigarette in his right hand, but when he turns on the lights, there is only a cigarette in his hand.
Continuity mistake: In the scene where Blade and the Bloodpack go to the club to find reapers, there is a clip where Lighthammer and the girl go into an area by themselves. When it shows the two, the girl has a blue light filter on her gun, but when cuts back to her, there isn't any filter on it.