Corrected entry: In the scene where Blade meets the bloodpack for the first time, and is telling Nyssa they should go to safehouses, you see in the background that Priest(the long haired one) is wearing dark shades. The camera cuts off him, but when it goes back to him, you can see that he is now suddenly wearing clear glasses. (00:33:00)
Corrected entry: In the first blade movie if blade did not take his serum he went into shock and became incredibly weak, yet in the sequel he intentionally sets his serum aside after speaking with Nyssa and can fight just as well without any noticeable change.
Corrected entry: When the UV bombs go off in the sewers, the reapers are burned but you see their dead remains as scorched statues. Yet, when sunlight hits reapers, they completely disintegrate into ashes. What's with that? It's all UV light right? (01:18:49)
Corrected entry: In the scene where they first encounter the reapers in the rave (right after when Reinhardt is shooting the reaper with the shotgun) Snowman is confronted by a reaper wearing sunglasses. The camera goes back to Snowman then back to the reaper who now does not have the sunglasses. (00:45:35)
Corrected entry: The vampires know that the reapers can't be killed by guns so it is unlikely that they should go into the sewers armed with guns and spend their time checking the guns before the fight.
Corrected entry: During the fight scene in the tunnel, the cartload of UV bomb explodes, instantly killing everyone, save Blade, and the 2 vampires. But this shouldn't be possible as light cannot bend, and therefore, the UV bomb would only be effective on the reapers around Blade - it can't go around corners. (01:18:26)
Corrected entry: In one scene Whistler has a thermal scope on a rifle and looks at Blade walking with a group of vampires. Blade is red (warm) and the other vampires are blue (cool). Later Whistler is walking in the tunnels with two vampires from the earlier group that were blue in the scope. They give him a night vision headset so he can "see in the dark". When he looks at the vampires with the night vision they are both red (warm). (00:35:43)
Corrected entry: After Blade and Whistler are taken prisoner by the vampires toward the end of the movie, Blade wakes up, feels around on his person for weapons, and Whistler tells him that they took all their weapons. Then, when Scud is holding the bomb that Blade had attached to the back of Reinhardt's head, Blade pulls out a detonator, and blows Scud up. So where did Blade hide this thing? How did the vampires miss it when they removed all his weapons? (01:22:51)
Corrected entry: When Nomak is admitted to the inner part of the blood bank in the first scene of the movie, the female tells him they found that his blood has a very rare phenotype. They strap him down, intending to take all his blood, and are apparently shocked when he turns out to be a vampire. But when Dr. Jenson examined Quinn's blood in the beginning of the first movie, she saw that his blood was highly unusual, in that it had biconvex red blood cells. While Reaper blood cells may not be identical to those of conventional vamps, if these guys examined Nomak's blood, they should've at least seen immediately that he wasn't human.
Corrected entry: In the beginning, after Whistler is rescued, he says something to the effect of "they could've at least fixed my leg." If Whistler were a vampire for more at least two years as the plot indicates and been left to heal in a vat of blood, his leg would've already healed, due to the regenerative capabilities of vampires.
Corrected entry: Towards the end of the film, Whistler escapes from Reinhart and finds Blade on the lab table where his blood is being drained. Blade's shirt/combat vest has been removed. It was mentioned earlier by Whistler that the vamps had taken all of their weapons, but later when Whistler is escorting Blade into the blood vat chamber, under fire from Reinhart, Blade is wearing the combat vest.